Didn't see any other threads on this topic so forgive if there is. For those of you who don't have unlimited data, for example have 2GB through ATT, are you able to bridge to the playbook, browse the web, and still stay under your data allowance? How much would it take to go over? I will mostly be using the playbook at home on wifi, but would like the option to bridge and use it for long car rides, etc. Thanks for any helpful input.