I recently purchased an Internet Turbo Stick from Bell Mobility, and I had asked the rep if I was able to use my existing blackberry SIM card in the turbo stick. I was told no. I just tried it and I was cruising the internet. My question is -- if while using my BB SIM card to cruise the internet--will it "use" my Blackberry data plan, or will Bell see this as some other form of tethering and charge me ridiculous fees?