What if your iPhone charging cable could charge your phone even when it wasn’t plugged into a charger? It’d be pretty neat, right? Well, that’s what Native Union’s Jump does, and it does it all while being the best-looking Lightning cable yet.

T-Mobile’s new summer smartphone promotion is a scorcher: The carrier has eliminated down payments entirely and dropped the price of all devices to $0. Even the latest handsets like the iPhone 5, the Samsung Galaxy S4 and the Sony Xperia Z are included in the hot new deal, which the company announced today.

But there is a catch.

AT&T’s new early upgrade program is “calculating, sneaky, underhanded,” according to a new print ad from T-Mobile that will be published in USA Today.

AT&T Next is designed to let customers upgrade their smartphone more often — once every 12 months — and it is a direct competitor to T-Mobile’s new Jump plan. But T-Mobile has been quick to make its feelings about Next clear, accusing AT&T of trying to take more money from its customers.

As a response to T-Mobile’s new Jump plan that allows customers to upgrade their smartphone once a year for free, AT&T announced Next two days ago, which offers similar perks as Jump but at a much higher cost.

T-Mobile’s CEO, John Legere has already launched an AT&T Next bashing campaign to go along with the anti-AT&T rant filled keynote he delivered on July 10th. According to an email exchange with CNET, Legere views AT&T Next as just “a poor copycat” of Jump that’s designed to ripoff consumers more than ever:

AT&T announced today that it will rollout its own yearly upgrade program, in what seems to be a direct response to T-Mobile’s new ‘Jump’ program that was announced last week.

The new service, dubbed ‘AT&T Next,’ will begin nationwide on July 26th. Customers will be able to get a new smartphone or tablet every year without a down payment, activation fee, upgrade fee or financing fee. Sounds great, except just like with T-Mobile’s Jump plan, you have to pay a monthly fee for the perk for the first 20 months.

Here’s AT&T’s summary of Next: