We heard that the iPhone 4 and 3GS were going to get stiffed over Apple's new Maps app and its fancy Flyover and turn-by-turn directions, but it seems there are more things the older iPhones won't get out of iOS 6, including 3G FaceTime.
You'll have to stick to Wi-Fi to FaceTime if you're using an iPhone 4, while the 3G iPad 2 is left out in the cold too. It seems strange that Apple's cutting something that's totally possible on older hardware - the only thing I can think of is that FaceTime's using some sort of more intensive compression to maintain video quality over 3G.
The iPhone 3GS will also miss out on the Offline Reading List; Shared Phone Streams; VIP list support, and VIP/Flagged smart mailboxes too, which is a bit of a downer for those still rocking and loving the legacy smartphone.
More bad news for those with iPad 2s hoping to get a bit of Siri - it's only coming to the new iPad. Perhaps it's a bit much to expect every feature to come to every phone or device with each free software update, but limiting turn-by-turn mapping and FaceTime over 3G on the iPhone 4 seems just a tad out of order to me. It's not like the iPhone 4 is that underpowered. [Apple via SlashGear]