I will be relocating to the UK from the USA in a few months and will likely be picking up an iPhone. Because I'll be traveling back and forth between the two countries, I will need a solution that works in both places. Now should I: (a) Buy up an iPhone in the USA and then unlock it for use in the UK (b) Get a UK iPhone and get it unlocked (I hear this can't be done) so I can use it when I visit the USA Also, what do you guys think about the O2 iPhone plans? Worth it or not? My usage would be primarily gmail and facebook browsing, as they're blocked at work so I'm not sure if that would throw me over 200 mb/month.