Ok.
I now own nearly all the hardware I think I need (Road Angel (which has a NMEA output), Laptop, Laptop Mount and crucially Tom's knob.
Question is, which (low cost) software should I look at for on-road navigation.
I have a copy of Autoroute 2004, which I think shows your current location, but I suspect does not give real time navigation instuctions?
Any suggestions?
David