Hi! So, I've been limping along on my 3G waiting for the 4 to come out. I'm stoked to get a new phone and this should really be a nice upgrade for me. Question though... will the sim from my 3g work in the 4? For example, if I pick up my new iphone on the 24th will my phone leave the store ready to go with all the info from my 3G? Or will I need to go home and sync it with itunes before I get all my phone numbers loaded in and such? Thanks!