Since I'm getting an iP5 I thought I'd give my iPhone 4 to a friend who is still rockin' the iP3GS. Problem is my iP4 is Japanese and they're in Canada. I still have the Gevey SIM for my iP4. Actually never used it. Might turn out to be quite useful for my friend. The iP4 uses the Micro SIM and not the new Nano SIM right? My friend's iP3GS is also using the Micro SIM on Fido right? So this should be a done deal? Is the iP3GS using CDMA or GSM on Fido? #2) If this all works out what about the Hot Spot tethering option in the settings? It was removed by SoftBank here in Japan. I had to JB it to get that setting back. I have since restored to factory iOS5 settings though. If my friend updates to iOS6 via iTunes Canada will the tethering come back as a factory setting?