The iPhone 2G is much slower than the iPhone 3G.
20 bucks
2g is 2nd generation 3g is 3rd generation. 3g is much faster. iPhone 3G can support WCDMA and HSDPA frequencies, but the iPhone can't.
Yes
The iPhone 2G.
The first iPhone (2007) is referred to as the iPhone 2G. Although Apple just called it iPhone.
i think the 2g costs $299.... Not sure sorry tried to help
2g is 2nd generation 3g is 3rd generation
they are different in size and shape, can't you replace iPhone 2G case with iPhone 4 case.
no.
Yes it will as the size doesn't change
about 2 or 3 hundred dollars