I googled around the net and searched here a bit (SIM is a little short to bring up results), but didn't find anything. Even though I've had my Captivate for over 2 months, the ATT website is allowing me to "upgrade" my phone with out-of-contract pricing. The Captivate has been a good phone, but I'm just have a lot of problems with it. Today was the third time a call has come in and nothing I did would allow me to answer it before it went to voicemail (it would only cycle between a blank screen and the lock screen---and I couldn't swipe out of the lock screen) Even though the Aria is inferior in a lot of ways to the Captivate, from everything I've read it "just works". I don't know a whole lot about SIM cards. If I keep the Captivate and buy an Aria, is it just as easy as swapping the active SIM card between the two devices for which one is currently my active phone, or is there more to it? I don't want to completely give up on the Captivate before Froyo, but I kinda need a phone I can receive calls on.