During the keynote presentation of iOS 6 appeared that Apple iDevice for some owners have had some unpleasant surprises. Besides the fact that iOS 6 only available for the iPhone 3G, iPhone 4, iPhone 4S, iPad 2, third-generation iPad and the fourth generation iPod touch. However, not every feature works on any iDevice: so you FaceTime over 3G only with the iPhone 4S and the New iPad use. Many of the new additions can also not be used on the iPhone 3G.iPhone 3GS , iPhone 4, iPhone 4S, MacRumors compared iOS 6 on all supported devices (with the exception of the fourth generation iPod touch) and then in the picture below to indicate which function you can use exactly what iDevice. None of the following recent announcements seem to work on the iPhone 3G. Some features is not strange, for example, Siri has never worked on the iPhone 3G, but with additions such as the VIP list in the mail and offline reading list is somewhat remarkable that they do not use.
On Apple’s website will not indicate which functions are by the 4th generation iPod touch are supported. The probability seems high that the iPod functions of the iPhone 4 can use: just like the iPhone has the fourth-generation iPod touch which is an A4 chip.
iOS 6 supports almost all devices iOS 5 use: only the iPad 2 and the third generation iPod touch fell off.