Are iPod Touches different sizes?

yes, because the different gens have different sizes

There are only three different types of iPod Touches. That means there are three different generations available on the market. These generations are the 1st, 2nd, and 3rd generation of iPod Touches.

No. iPod sizes only vary with different iPod models and sometimes with different generations. But not different hard drive sizes.

i think they go from 8-100 somthing or like 200

All iPod touches do take apps but not all iPod do. The iPod touches are the only ones.

There are iPod Classics, iPod Minis, iPod Nanos, iPod Shuffles, and iPod Touches

No. Only iPod touches 4th generation and above can record video, as these are the only iPod touches with cameras.

iPod Touches come in 8GB, 32GB and 64GB.

No, they use the same cable.

There hasn't been a rise of reported iPod Touches that broke on their own. iPod Touches do have the ability to break, but the construction is pretty sturdy to where it is not often the iPod Touch completely breaks. Although iPod Touches do break, it is not likely they will break on their own.

Technology is really improving these days, so I think they will come up with colored iPod touches, but for now, its just black that you can get colored cases/accessories for them. :)

Yes!! it has the same Username, Two different ipod serial no. Still you can sync your ipod, by marking check or uncheck right side of the song.

5, but the 2nd and 3rd aren't much different

the ipod touches mostly have black i havent seen anyother colors

Yes all iPod touches have app stores.