With iOS 6, FaceTime gets a feature that it arguably should have had from day one: FaceTime now works over a cellular connection, not just Wi-Fi. That's assuming you have the right device, and assuming your carrier allows FaceTime over 3G/LTE without making you jump through hoops first. *cough*AT&T*cough*
Even though the iPhone 4 and iPad 2 Wi-Fi + 3G model both have 3G and FaceTime capabilities, for some reason only the third-generation iPad, iPhone 4S, and iPhone 5 have been blessed with FaceTime over 3G capabilities. There's been no word why the iPhone 4 and iPad 2 don't get this feature, and it's doubtful they'll get it later down the line.
If you're unfortunate enough to be an AT&T customer, t