[blutonium]

First generation hardware is difficult to support. They dropped the original iPhone in iOS 3.

[xol]

That almost gave me an aneurysm at the time - I had a first generation iPod touch, and it quickly became less useful app-wise. But long term it was still probably the right move, iOS 3 ran slowly on the first gen touch.

[ja27]

And iOS 6 dropped the third generation iPod Touch. Even iOS 4 is noticably laggy on mine.