I recently switched to AT&T from a small carrier called Cellcom. With Cellcom I had 3 different blackberries and loved them but wanted an iPhone 4. Now I decided I want a BB again to switch to when I'm sick of my iPhone. The iPhone 4 has a micro sim and the sim slot on the bb is much larger. I am looking at adapters so I dont have to get a new sim each time I switch. What size sim is in the bb curve 8310? Do you guys know anything about if the adapters work? Thanks!