I know somebody will know this answer. Here is my scenario - I bought my BlackJack II earlier this year. I would love to get a new Iphone, but I am not eligible for the $199 upgrade and really don't want to spend $400 (same reason I didn't buy iphone in the first place). Anyway a good friend of mine is willing to upgrade his iphone to the 3g. I assume he is eligible to upgrade for $199 the upgrade fee. He said he would sell me his old one for cheap enough to get my interest. Since I already have the data plan for $30 a month, will I be able to buy his old iphone to replace my blackjack? Perfect scenario is that he gets a new phone, I get his nice "old" one, take my sim out of blackjack and start using iphone. I know it won't be that easy, but I am wondering what steps would have to happen. Thanks!