Ok, i've been offered a straight swap for my BB 9700 Bold for a 16GB 3GS iPhone which is what i wanted. It's on 3.1.3 firmware and i was looking forward to jailbreaking it but can live without. I don't really know much about phones but will i have any problem sending it to be unlocked then chucking my sim card in it with no problems. The guy swaaping it with me is a decent bloke but im just scared of swapping a £400 phone then not being able to get it unlocked or something and im stuck. Any advice please?