An iPod Touch 3rd Generation has many more features than the 2nd Generation offers. The 3rd Generation has the internal components from the iPhone 3GS. These include the processor, graphics processing, and memory. This makes the iPod 3G a much faster device than it's 2nd generation predecessor. The 3rd generation iPod Touch also has Voice Control taken straight from the iPhone 3GS whereas the 2nd generation iPod Touch does not.
they do for you
no...
2G
Any iPod Touch 2G case WILL fit the 3G. I've purchased two myself.
iPhone/iPod Touch/iPad iPhone: 1G, 2G, 3G, 3GS, 4 iPod Touch: 1G, 2G, 3G iPad
if you meen Ipod Touch 2G upgrading to 3G it is Bluetooth and the Search Page! if you meen Ipod Touch 2G and the new Ipod Touch 3G it is the 64gb and voice control!
4g is the best (it isn't even related to the question!) there both nearly the same but the 3g do have a wall paper after you unlock the ipod touch
Yes by about 1-2 seconds.
Yes
no only ipod touch 2g and 3g have built in internal speakers
Sadly, no i tried to use 3g or 1g firmware on my ipod touch 2g and it didn't work. You have to have the exact firmware file. Like if you have an ipod touch 1g with 2.2.1 firmware you have to have the file made for a 1g itouch that has 2.2.1 firmware
yes i believe so