Every iOS device so far has gotten 2 major iOS updates before Apple stops supporting them.
The iPad 1 released with iOS 3.2 so would iOS 5 be the last major release after it went through iOS 4 and iOS 5.
It has the same A4 chip as the iPhone 4 but since the iPhone 4 was released later with iOS 4 that would be it would get iOS 6 support before it stops getting supported.
The iPad 1 released with iOS 3.2 so would iOS 5 be the last major release after it went through iOS 4 and iOS 5.
It has the same A4 chip as the iPhone 4 but since the iPhone 4 was released later with iOS 4 that would be it would get iOS 6 support before it stops getting supported.