Hey mate ,
route 66 will work with the internal gps not a problem make sure that you use the version (Route66.Mobile.v7.3.486) . now getting it installed can be a little tricky < it took me a little while to be honest.
yeah the nokia maps does cost thats why i opted for the route 66 compaired to nokia maps and just to confirm i have had a play with tomtom on my mates vario2 and there pretty much the same , all the hype over tomtom verus the rest is a bit of banter i feel as we did a route in the same car with both working and they both showed the same options .
if you add me to msn i will be happy to help you with this no problems at all i got ton up on tons of free apps and maybe the odd route 66 present for you i am sure
Look forward to speaking to you
Alex Slane