Gps

Do you want GPS for your phone?

Or just some software that will let you plan a route on your Mac and then export it to your phone?
-In this case a free simple solution (sorry, Sunday morning thinking!) would be to use Google Maps or something else to plan your route, screen grab and send picture files to your phone?...( )

For GPS for your phone you have several options. Tom Tom do a version for Nokia Symbian and PocketPC Smartphones.

Route 66 for Nokia Symbian and PocketPC is also available.

I'm not totally sure what you want, but these will let you put maps and routes on your phone obviously, but will also give you the GPS for your phone to use while on the road instead of just running off pre-determined route maps.

Hope this somewhat helps!