I currently have an iPhone 3G 8GB on Tmobile Contract (bought sim free); however, I am thinking about upgrading it to the 3GS version.
My upgrade is due from Tmobile next month, and I am aware of them giving it out - but I do not want to be tied into any high priced 18mth contract so am considering taking the line rental discount instead (on my old Flext 35 with Free evening & weekend calls).
Carphone warehouse do the 16GB iPhone 3GS for £450... O2 charge £15 to unlock - totalling £465... Is it possible to unlock straight after buying the phone and is it worth it???
Any other suggesting would be appreciate :-D