Hi, I have a T2 and now realise it may have been a mistake as I want to use it for GPS, but everywhere I go they say T3 or T5. TomTom have just said "it may work, but we won't support it" and they say T3 only. So a two part question .... is the bluetooth on the T2 the same as on a T3, such that a bluetooth GPS unit would have no problems? And / or what GPS can I use with a T2? I now know about the Navman 4470 (new I believe), but any others? S.