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AT&T has begun shutting down its 2G service in New York to free up spectrum for 3G and 4G customers. The shut down will effect a number of mobile phones that rely on 2G service for voice and data.

If you’re still using an original iPhone that doesn’t support 3G, it isn’t time to worry just yet. At least initially, the AT&T will only be shutting down one of the frequency bands that it uses to provide 2G service. Frequency that is  supported by the original iPhone will be maintained for the foreseeable future.

Bad news for grandfathered unlimited data subscriber on Verizon: the nation’s largest carrier will kill unlimited data once and for all when subscribers switch over to 4G LTE data plans.

Starting in mid-summer, when you buy a LTE handset and switch over to 4G data, Verizon will make you buy one of its new data share plans. Switching plans will end your grandfathered unlimited plan.

China Mobile, the world’s largest carrier with over 655 million subscribers, is in talks with Apple to bring the iPhone to its homegrown 3G (TD-SCDMA) network. The carrier’s chairman, Xi Guohua, confirmed the discussions during a shareholders meeting earlier this week.

As AT&T continues to roll out its LTE network across the country, some markets are getting markedly lower speeds for LTE iPads and other devices. In fact, two of the company’s largest markets are getting speeds below the national average for AT&T’s LTE service and below Verizon’s LTE service in those areas. Those two markets are Los Angeles and Chicago – but several other cities may be in for the same issues as AT&T expands its LTE service in the coming months

How important are iPads and other tablets to mobile carriers worldwide compared to mobile broadband devices? According to a new study, they’re becoming a critical part of the mobile business. That’s pretty impressive when you consider that before the iPad’s launch two years ago, tablets were a rarity in mobile carrier stores. Today, thanks largely to the iPad, tablets make up 40% of mobile broadband offerings.

AT&T is looking forward to a future when all devices, including iPads are sold with 3G or LTE built-in. That was the message that the carrier’s Glenn Lurie, president of emerging devices, told reporters at this week’s CTIA conference in New Orleans. That approach would be somewhat similar to many smart TV devices that include support for a range of features that users may or may not use – Netflix or Flickr on the Apple TV, for example.

Lurie described the current range of tablet options where devices, including the iPad, come in separate Wi-Fi and 3G/4G models as being “a little out of balance” – a situation he ascribed to the cost difference that 3G and LTE versions of a device compared to its Wi-Fi-only counterparts.

Sprint’s plans to migrate its 4G server from its current WiMax standard to the more common LTE already in use by Verizon and AT&T. The move should allow Sprint to offer LTE iPads as well as future LTE iPhones. That’s good new for the carrier and Sprint customers.

Unfortunately, there’s also some bad news. Sprint’s LTE network won’t be able to match the performance of its competitors.

As it has said many times before, T-Mobile is eagerly awaiting the arrival of the iPhone on its network. The carrier has been largely unable to attract unlocked iPhone owners due to the fact that frequency incompatibilities make it impossible to use 3G data speeds on T-Mobile’s 1700 MHz AWS band. T-Mobile started transitioning part of its spectrum over to the iPhone-friendly 1900 MHz band last year, and scattered reports have said that a small number of iPhone users can now use 3G speeds in certain areas of the United States.

Not only is T-Mobile saying that its 3G network will be ready for the iPhone by Q4 of this year, but it also plans to offer HSPA+ 4G speeds on an iPhone-friendly frequency.

Despite its focus on a speedy international rollout for the new iPad, which has seen the tablet hit 57 countries in just over one month, Apple is still keeping on top of demand and working to reduce shipping delays in its initial launch territories. After delays dropped to just 3-5 days in the United States last week, customers in Europe are now facing a wait of just 7 days.

There’s an unforeseen cost for companies as workers become more mobile and trends like BYOD become ever more common. It isn’t the cost of a mobile management solution, deploying iOS apps, or even supporting iPads and iPhones that users want to use to connect to the work email and other business resources.

What is this hidden cost? Wi-Fi.

Apple continues its rollout of the new iPad in nine additional countries today, making the sought-after tablet available in 57 markets worldwide. This is now the fourth phase of rollouts since the device made its debut on March 16, but one of Apple’s key territories is still without it.

Just about every major carrier seems to boast the “fastest network speeds,” while bombarding us with acronyms like LTE and buzzwords such as “lightning fast.” When it’s all said and done, we’re left confused and none the closer to the truth of which network actually has the fastest speeds. So how do we find out the truth? Well, it’s not as simple as we’d like it to be and there are near infinite variables to the equation, but one way to get a general idea of how fast a network’s speeds will be in a real-world environment is to test them out.

While it may look pretty, Apple’s decision to build the iPhone 4 and iPhone 4S almost entirely out of glass means that the handset isn’t really cut out for the dings and drops that our smartphones often have to endure. But the new iPhone could be a whole lot different. Built from liquidmetal, it could be one of the strongest smartphones money can buy.

Apple’s latest iPad has already been plagued by issues related to its Wi-Fi and 3G connections, but it seems its problems don’t stop there. No, I’m not talking about its slightly warmer feel, which isn’t a real issue. I’m talking about issues with its new Retina display, including yellow, blue, and pink tinting; dead pixels; dust; backlight bleeding and blotches.

[UPDATE: See the end of the post for a possible solution, which works for some people.]

Many iPad 3 users are experiencing a bug which kills their 3G connection every time they connect to a Wi-Fi network. The cellular connection looks normal, with the carrier name, the 3G logo and reception bars, but when you try to do anything that requires a connection, it either times out or throws the error messages “Could not activate cellular data network.”

I am having the exact same problem, and here’s what’s happening.

LTE is one of the key features available on the new iPad. All that extra speed can be a great feature for consumers and business users alike, although the ability to burn through data that quickly means that all LTE iPad users need to be more conscious of their data use than with the previous 3G iPads (the same will no doubt be true for the next iPhone).

A new study claims that most iPad Internet access (94%) still takes place over Wi-Fi networks, however. That seems like bad news for carriers and it sounds like comforting news for CIOs and IT professionals worried about unknown iPads in their companies. After all, if only 6% of iPad connections occur over 3G/4G, then most iPads in the office are using a corporate network and can be tracked and monitored to ensure data and network security.

Unfortunately digging into the actual data from the study reveals iPad users with 3G and LTE models are actually spending a lot more than 6% of their time using their cellular connection.

Here at Cult of Mac, we’re interested in building a data set which we can use to determine which networks offer the fastest and most reliable 3G & LTE coverage to new iPad owners. We’ll then use this data to report on which new iPad carrier is the best in each country or territory where it’s available.

Will LTE networks be crushed by demand, or will the upgrade to true 4G be as dramatic as the likes of AT&T and Verizon would like us to be. Finally, will most people who buy an iPad Wi-Fi + 4G even live within an LTE coverage area?

If you’ve got a new iPad Wi-Fi + 4G, could you take a couple minutes out of playing with your new, shiny tablet and help us out?

If you bought a new iPad with LTE today, you may already be using it at the office or planning to do so on Monday morning. The iPad is a great business device and it’s becoming more commonplace for workers to provide their own smartphones and other mobile devices. The addition of LTE really bumps up what you can do on the road or after hours.

But that LTE service, which expands how productive you can be away from your desk comes with a price tag that you’re probably paying out of your own pocket. If you regularly use LTE (or even 3G) service on your new iPad or other device for work, should your employer be footing part of the bill?

When your pickup your new iPad today, you need to be sure you choose the right carrier if you’re purchasing a 4G model. That’s because AT&T and Verizon use different cellular bands for their 4G networks, so an AT&T iPad won’t connect to Verizon’s LTE network, and vice-versa.

They will share 3G connections, however. Buy a Verizon iPad and stick an AT&T micro SIM in it and you’ll have no problem connecting to AT&T’s 3G network.

When Apple introduced FaceTime on the iPhone 4 nearly two years ago, many users were disappointed to find out that they could only place video calls while connected to Wi-Fi. That was a disappointing fact, but not entirely surprising given the bandwidth that it takes to pull off a high quality video call and Apple’s penchant for making the user experience perfect at all costs.

Guaranteeing a solid experience might have made a good deal of sense when it comes to the iPhone 4, iPad 2, and iPhone 4S – all of them are 3G devices and 3G data performance often falls short of terrestrial broadband and Wi-Fi. But the Wi-Fi only restriction remains in place on the new iPad models with LTE even though LTE performance can approach that of many home broadband options – begging the question: Why is Apple limiting FaceTime on its new LTE devices?

In the latest patent war saga, a Dutch court ruled that Samsung cannot assert 3G patents against Apple products using Qualcomm’s baseband chips — as Samsung has a licensing deal with the U.S. chipmaker — thus denying their bid to ban the sales of the iPhone and iPad in the Netherlands. However, Samsung didn’t consider the ruling a complete loss as the Hague court also ruled that Samsung could seek damages over the use of Intel chips. While Apple doesn’t use Intel chips, this gives Samsung ammunition against those that do.

The new iPad uses blazing fast LTE 4G networking to let you stream YouTube faster than you can say “Tim Cook’s your uncle,” but you still can’t use the tablet to make FaceTime calls over 4G or 3G. Calls fail to connect when the third-gen iPad isn’t connected to a WiFi network, just like they do on the iPhone.

iPhone users have been hammering for FaceTime over 3G since the video calling technology was introduced by Steve Jobs and Jony Ive back in 2010, but Apple has yet to flip the switch. Due to the data-heavy nature of video calls, the carriers are likely to blame.

Our awesome Twitter follower @presstopher was one of the first to get iOS 5.1 downloaded on his iPhone and noticed an odd update – his AT&T iPhone 4S (that runs on the 3G network) is now lying, claiming that it is running on a 4G network. iOS 5.1 changes AT&T iPhone 4S to show that they are using a 4G network. It’s complete malarkey and we’re stunned that Apple and AT&T have made this move.

While 4G LTE connectivity for the iPad 3 seemed unlikely just a few weeks ago, recents rumors have said that the super speedy mobile internet technology will indeed be making its debut in Apple’s new tablet. The latest report comes from The Wall Street Journal, which confirms the device be joining Verizon’s LTE network.

Apple is yet to strike a deal with China Mobile over the iPhone, but that hasn’t stopped the Cupertino company from supporting China Mobile customers who want to use its latest smartphone with the carrier unofficially. Just a month after Apple confirmed that the iPhone 4S has issues with China Mobile SIM cards, it has fixed the device to eliminate signal issues.