I jailbroke my iPhone 3GS to bypass the carrier activation, because it was given to me after a friend upgraded and I use it essentially as an iPod touch. The only thing I used the jailbreak for was to bypass carrier activation; I haven't installed any Cydia apps or the like. If I click the "Update" button in iTunes (or Settings on the phone itself) will I need to activate with a carrier? I figure I'll lose the jailbreak, but if the updates sees that I'm "activated", will it just go from that and let me use the thing?