Several
The "generation" label refers to the version of hardware you have. iTunes will update the software on your iPod to the latest version. Gen 2 Ipod Touch also has volume buttons on the outside, as well as a speaker and the ability to use APPS from the Apple Store.
The I-pod touch has a touch screen.
Apple has not yet release and iPod Touch 5th Generation. The latest addition to the iPod Touch was a White coloured model.
The ipod touch and the ipad are the same except the ipad is bigger than the ipod.
an Itouch has a touch screen and a ipod does
The ipod 5 is longer and u can pick a color for the back.
Ipod touch is bigger (in physcial size), is newer so it has more features, and it is just one big touch screen.
Go to this http://en.wikipedia.org/wiki/IPod_Touch
There is none. iPod Touch 3G IS third generation.
Storage capacity is the only difference.
Memory capacity. Software capabilities .
It depends on what iPod it is because ther is more than 25 diff. Ones an iPod touch is a touch screen. With ether 8 gb or16 or 36 or 64