I have been using my N900 with t-mobile and i do not have any internet-data plan at this moment but for some reason i can access the internet using t-mobile internet. it kicks me out after like 5 minutes but i can use it again after a short while. I did call t-mobile customer service and told them that i was accessing the internet without wifi and i was concern about getting charge for data download. They told me that i did not have any charges at all. He also mention that they dont charge for the volume of data that you download like other company's like Verizon, is either i have data plan or not. is anybody else getting online without wifi using t-mobile internet plan and not getting charge for?