one generation
the second generation is thinner and has better software
4th generation is more updated and advanced
Well, mainly its just an updated version and 1st generation doesn't have built-in speakers like the 2nd does.
A lot slowerBack is differentDoes not support some appsNot as sexy
that the 4g is a bit thinner, have built-in microphone and cameras
A second generation iPod touch costs $200 if you buy it new
Well... the difference between the 1st generation iPod Touch and the 3rd generation iPod Touch is SLIGHTLY different. The cases will STILL WORK!!! (you are relieved :) ) The difference between the two generations is that the 3rd generation is slightly slimmer that the 1st. The thing is the cases made for the 1st generations might me a little big... (by a few centimeters!)
ipod touch 2nd generation
All generations above the previous generation are usually better in iPods. In this case, the iPod Touch 3rd generation is better than the 2nd. The difference is that the 3rd generation has bluetooth, but you can install that on your 2nd generation. There is not difference in speed Apple pretty much repackaged the 2nd generation adding the bluetooth to it though.
The 32gb has an additional 24gb of memory.
It's just white and a 64GB model