I have a JB 3G. Unfortunately, it is the latest BB, so not unlockable. I will go to China for a month. Friends there tell me I can get a GSM Data Capable SIM with about 1GB of usage prepaid for about $28. If I purchase one of the Turbo Unlocking SIMS on ebay, and then get the data SIM in China, should I be good to go? Any suggestions on the best Turbo SIM to buy?