I think i proposed this question in the wrong thread, i put it in the thread where i hope to win a copy of Tether, so i will post it here. Recently a friend of mine went to Telus to purchase a new BB and asked about using it as the Modem for his laptop. They told him that it would have that ability but they would charge him extra to do it. He also found that Bell and Rogers, were currently not charging for using it that way. Now other than the data usage how would they know he had tethered his phone? does the tether app allow one to do this without the service provider knowing?