I have some questions about an iPhone 2G I plan on buying for my brother.. 1. Is $170 a decent price for an iPhone 2G 8GB that is in supposedly perfect working condition and good physical condition? 2. I know how to jailbreak/unlock, and want to know what pay-as-you-go / pre-paid options he can use (Boston area). I know that, recently, T-Mobile shut down their Sidekick plan or whatever, so I want to know what works. What is the best pre-paid option my brother can use with unlimited data? Minutes and texts aren't too important because I plan on using Google Voice. 3. I have the 3GS, and was wondering what are the main differences between them? I know my iPhones pretty well, so I know: - No 3G - No GPS - Slower and less RAM, but ok I guess - Different look obviously - Non-flush headphone input - Different battery lives, etc. What other differences are notable, especially with jailbroken stuff? Like, "in the maps app, the 2G cannot do ___" Thanks, and I appreciate it.