hey ive been wondering if it would be worth it to buy a 3g or if i should justbuy the old iPhone. I am currently under contract with t-mobile for 2 years so i cant get an at&t plan. I have no clue how to get the 3g iphone for a reasonable price without a contract so i was wondering if it would be that much of a downgrade if i just bought the 1st generation iphone? it would cost less and be a lot easier to get my hands on. please tell me what you think.