2nd generation i3 was developed in 2nd Generation and 3rd Generation are developed in 3rd Generation..... :) lol
2g is 2nd generation 3g is 3rd generation
one generation
The difference between the 1st and 3rd generation iPod is slightly different. the cases will still work, the difference between the two generations is that the 3rd generation is slightly slimmer than the 1st generation.
The difference is that a 3rd generation iPod touch has voice control if you purchase the "Apple Earphones with Remote and Microphone". The 3rd generation is also faster and has a better processing system.
The 3rd generation of iPod Touches just has a faster processor, and everything is done just a little bit faster.
There is no 8GB 2nd generation ipod nano it only went to 4GB but 3rd generation had video.
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.
Not much. The only big difference is that the 3rd generation has a better processor, so runs around 50% faster. Also, the 3rd generation iPod Touch is available in a 64GB version, and is also cheaper.
one is more advanced than the other
The only big difference between the two is that the 3rd has a 50% faster processor, so games and other apps run faster and more fluid than the 2nd generation.
2g is 2nd generation 3g is 3rd generation. 3g is much faster. iPhone 3G can support WCDMA and HSDPA frequencies, but the iPhone can't.