Need to go to the Genius Bar for strange calendar problem in list view that hasn't been fixed by anything including a restore. It's also cracking around the dock connector. My iPhone 3GS was originally O2 PAYG, and was unlocked by O2 and I'm now using it on Vodafone on their 30-day contract. If the phone needs to be replaced, I really want another unlocked phone so that I can use non-UK SIMs and I can change provider again in the future should someone else offer better value for my needs. Do Apple Stores hold unlocked phones in stock? How am I likely to achieve this? I suppose as a fallback they could give me another O2 on PAYG, but then I'm stuck for up to 14 days (and £15) while O2 unlock it... Anyone experience in this position? The online Apple store only shows phones on O2 and Orange.