I have 3GS 8GB factory unlocked (through AT&T). I am going to trade it for a 3GS 16GB NOT factory unlocked. and i will put out $10 with my 3GS 8GB.
my 3GS back cover has some scrapes, scratches, dropped it couple time, mainly hit back cover
my 3GS back cover has some scrapes, scratches, dropped it couple time, mainly hit back cover