I want the Blackberry Touch phone, but there is a problem. I can't buy it from AT&T because I'm on a contract for another 18 months. I need to buy an unlocked or AT&T phone but not direct. Could I use this with my current SIM Card and do I need a data plan or such? If so, does this apply to all Blackberries. I have a V3 RAZR which is old an falling apart, its a British unlocked phone, but I've never been able to use the internet on it, which sucks. Advice people? I have some time to research it.