Here's the differences in the two generations- in order of importance:2nd gen has an internal speaker, the first does not (any sound must be heard through headphones)2nd gen model has buttons on the side like...
I've owned multiple 1st and 2nd generation iPhone's. Even after the addition of the new iPhone 3G version and the myriad imitators, it remains a highly functional and prestigious device. The 3g variants...