Here’s how iCloud will work, according to Jobs:

“Now, if I get something on my iPhone, it’s sent to the cloud immediately, and they’re pushed down to my devices automatically. And now everything is in sync without having to think about it. I don’t have to be near my Mac or PC.”

“Some people think the cloud is just a hard disk in the sky. You transfer back and forth. We think it’s way more than that. We call it iCloud. It stores your content in the cloud, and automatically pushes it to your devices.”

It’s completely integrated with apps, and there’s nothing new to learn. It all just works, no iTunes required.

But why should we believe Apple? “After all, they’re the ones that brought me MobileMe,” Steve Jobs jokes. He’s clearly still pissed about that.

“It wasn’t our finest hour, but we learned a lot. We’ve written Contacts, Calendar and Mail from the ground up to be iCloud apps.” All the changes are stored in the cloud and pushed to your devices.

Best of all, these three core apps are now free… with no ads.

Steve Jobs has come back onstage to talk about iCloud.

I get to talk about iCloud. We’ve been working on this for some time. About 10 years ago, we had one of our most important insights. We thought the PC would be the hub for your digital life. Where you put your photos, your video, your music,” says Jobs.

“You were going to acquire it, and sync it to the Mac, and everything would work fine. And it did… but it’s broken down in the last few years.”

“Why? Because all your devices have photos, have video, have music. If I buy something on my phone, I have to sync it to get a song I bought. Then I have to sync that to other devices, and if I have photos, it’s the same thing… and keeping these devices in sync is driving us crazy!”

“We’ve got a solution for this problem. We’re going to demote the PC and the mac to just be a device. We’re going to move your hub, the center of your digital life, into the cloud.”

Wow. I had no idea they were going to phrase iCloud as an invalidation of the PC as a center of your computing life, but it makes sense, given where Apple’s business is going. Can’t wait to see the details.

Uh, hey, see that right at the bottom of the slide showing what’s new in iOS 5? WiFi Syncing to iTunes! That’s one I was praying for, but didn’t actually think we’d see coming.

Others include new multitouch gestures and universal Dictionary support.

Apple’s just shown us ten new features of iOS 5. There’s 190 left. Unbelievable.

Devices iOS 5 will supprt are iPhone 3GS and iPhone 4, iPad and iPad 2, iPod Touch 3rd Gen and Fourth Gen.

It’s coming this fall… right in time for the iPhone 5.

Oh, shit. As was rumored earlier today, Apple just announced what could be the death blow to Blackberry: iMessage, a way to securely message between iDevices.

“Our customers have been asking us for a new messaging solution. We’re launching a service that works for all iOS 5 customers. We call it iMessage. It supports iPhone, iPad, and iPod touch,” says Scott Forstall.

You can use it to send text, photos, videos or contacts, even group messages.

We’ve added delivery receipts, and optional read receipts. Typing notifications, so you can see if someone is typing. Pushed to all of your devices, so you can pick up where you left off,” explains Forstall.

Even better, it happens on 3G and WiFi.

This is a serious wake up call to RIM. Their last great advantage just flew out the window: BlackBerry Messaging is unique no longer. Time to evolve or die.

We’re living in the post PC world, according to Steve Jobs, so why do you still need a computer to use your iPad or iPhone?

No longer: iOS 5 is going PC Free. Now, instead of starting up an iOS device and saying to connect to iTunes, you get a Welcome Screen.

And guess what? You know what else you get now? Wireless updates over the air, which Apple is calling Delta Updates.

This is great news for most, but I’m guessing this is going to be a huge fly in the ointment for jailbreakers.

Yes! I’ve been waiting for this forever. Apple’s given the iPad a portrait mode keyboard perfect for thumb typers! This is just like Microsoft demoed in Windows 8 last week!

“Mail is one of the most used applications. We’re making it even better. We’re adding rich text formatting, adding indentations, you can drag addresses, you can flag and unflag, and you can search the entire contents of your messages,” says Scott Forstall.

Meet the new Mail.app. And it’ll have hot new features for enterprise customers, with support for S/MIME and certificate encryption.

The new Mail.app reveals that Dictionary integration has come to all of iOS.

The iPhone is already almost the most popular camera on Flickr. Apple wants to make it even easier to take photos with an iPhone: coming soon, you’ll have a lock screen shortcut for taking photos in iOS 5.

What’s cool about this is that even if you have a passcode set, you’ll go right to the camera. You can’t see anything else… and you can use the volume up button to take a photo…” said Fortsall to huge cheers.

This is my favorite iOS 5 addition today short of the new notifications.

In addition, Apple’s adding some abilities to easily edit photos on the iPhone, including cropping, red eye reduction, quick enhance and more.

The next two additions to iOS 5: Safari and Reminders.

Safari on the iPad has become more like the desktop version, with tab support.

Reader is coming to IOS, where it belonged all along. As well, Apple’s Reading List basically brings Instapaper and Read It Later to iOS as a default feature. You can even tweet stories on your reading list, complete with autocompletes for @mentions.

Reminders is a way to keep track of to do lists and things to be accomplished. You can create lists of things and associate dates with the reminders, as well as locations.

Reminders will sync with calDAV and also iCal.

Next big feature? Twitter integration, as rumored. And it goes way beyond photos.

On the Setting screen, you can now enter your Twitter username and password. Now, if you want to share a photo through Twitter, you just tap the Tweet button.

You can also Tweet articles from Safari, videos from YouTube app, directions and business from Maps and even contacts.

This is less dramatic than I expected Twitter integration to be: I expected Apple to go head to head with Foursquare. Nice, but trivial.