Why not used Magic Sim it's 100% working, I have 3 iphone, 1 factory unlocked 3GS, 1 AT&T locked 3GS and 1 Rogers locked 3G, right now all our iphones was jailbroken/unlocked by spirit/ultrasnow...I'm using 6 in 1 magic sim card.
http://forum.gsmhosting.com/vbb/f456...-here-1021998/