The difference in iPod generations is what they updated. They could have updated the speed of the device, added new features, fixed bugs, etc. And as always, it is recommend to always update to the latest version, unless the latest version has more bugs or problems.
Generally, the higher the generation the more features the ipod touch will have.
1g- No built in speaker
2g- Built in speaker
3g- NO important difference
there are 4 generations of the ipod touch
The I-pod touch has a touch screen.
there are 4 generations of ipod touches
Storage capacity is the only difference.
no ipod touch 4th generations do not require a data plan
an Itouch has a touch screen and a ipod does
The ipod touch and the ipad are the same except the ipad is bigger than the ipod.
As of 2013, the iPod has 7 generations, and the iPod touch has 5.
There are currently 4 generations.
Apple has not yet release and iPod Touch 5th Generation. The latest addition to the iPod Touch was a White coloured model.
Memory capacity. Software capabilities .
Ipod touch first generation is pretty slow, the higher generations have faster speed and are thinner than the first gen. The later generations of the ipod have more features. Ipod 4 has a camera also able to record video.