Ok, so I have a work collegue that has come over from the US on a permanent basis. She has a locked US iphone and a UK corporate Blackberry on O2. Ideally she'd like to user her iphone instead (work don't have a problem with this) So I see 2 options but have a couple questions: 1) Unlock the iPhone with yellosn0w. I've unlocked a fair few iPhones so know the baseband issues etc. So once we've done this, the calls, text etc will obviously work but what about the data? I assume the BB Data plan is between her BB and the BB Server so it wouldn't work on the iPhone. Is there anything that can be done? 2)Since the UK BB is with O2, can she just take the O2 sim into Apple/O2 etc and get it activated on a US iPhone? I know you can do this with UK phones but not sure how it would work with a US one. Any help would be appreciated.