So I have a 3GS right now, and while I'm eligible for an upgrade I'd much rather just get the new phone unsubsidized so I don't have to agree to another 2 years on AT&T. The problem is, the iPhone 3GS has a normal SIM, while the new model uses microSIM. If I go into an AT&T store, will they give me a new microSIM thats based on the current plan? Oh, and while we're at it, since both the iPhone and iPad use the same microSIM now, does that mean we can just swap our iPhone SIM into the iPad and use the iPhone data plan whenever we want some 3G data? Thanks for any info guys.