Now that the prepaid iPhone 3GS has dropped (supposedly) in price to $375, is it worth buying? I understand it's not usable outside of the USA, and I do travel from time to time. Still, my Windows phone is unbearable on a daily basis-- I have to switch ASAP. You cannot believe how horrible Windows Mobile 6 is, with its pen-based input. (BTW no, I don't want to do a contract and pay $70 per month for an iPhone 4.)