Surely, due to the nature of the N900, people could just flash the device to firmware of their choice manually? I can't see how far this branding could really go!! It was easy enough to unbrand the N96 which was running Symbian (which I did when I got my phone directly from Voda).

Thankfully I'm a T-Mobile MPD contract for my N900, although using my vodafone contract from the N96 as it hasn't run out yet. Sold the other contract to a family member for half price due to the heavy subsidy I ended up with for my N900