ye I agree with christye, It's probably just a scare tactic. They just say things like that so the average joe thinks "well Im not doing that then". It does make me wonder though, how do they think the average person is going to be able to setup the n900 as a modem? It's not like clicking a button on and even if it was most people cant setup there home wifi let alone one on a phone!

T-mobile have loads of "rules" like no video streaming but you can still do it...