Mobile Phone/PDA as a Sat Nav?

Im thinking of upgrading my current phone to the new Orange SPV M600 (Comes out in a few weeks replacing the SPV 500).

I’ve heared I will be able to use it as Sat Nav system if I have the right software on it.

Is this true?

I presume you mean GPS? If so… eh no, it can’t do that. It’s a three-standard device (featuring EDGE, GPRS, GSM) but no GPS. GPS functionality can be added with a standalone GPS receiver (using BlueTooth to connect to the SPV).