Any iPod Touch 2G case WILL fit the 3G. I've purchased two myself.
It depends on what iPod touch it is but it's not really worth the risk.
No. The new iPod Touch 4G's are slimer than the 3G and a hard or soft case will not fit them.
Yes, a 2nd generation iPod Touch case will fit a 3rd generation iPod Touch.
yes. the ipod touch 2nd and 3rd generations are the same size so any case will fit both.
yes i believe so
they do for you
yes, but the headphone jacks are in different places, so it depends on the case
no the iphone is much thicker
Yes
ipod touch has no telecommunications capabilities so it is unable to connect to 3G. A 3G iPod Touch will not be released.
No. The "3G" in "iPod Touch 3G" means third generation. It does however receive wifi.