I use my 8700c (Cingular) in places like Kuwait, Bahrain, Qatar and a few others. I have the international Data plan so get unlimited email/data. My BB is unlocked and from time to time use local SIMs. The only advantage to this is cheaper local phone calls but loose the data while I am using the local SIM. I do not believe you will be able to get a local SIM which will do phone and data as most SIMS for tourists are pay as you go. I just switch SIMs back and forth which is not convenient, but is the cheapest method for me.