OpenStreetMap is now navigation-ready
So for those of you who live in the US, congrats.The situation in my area is nowhere near as good.  I've got a couple Garmin GPSes as well as a GPS capable phone, and I would just love to map every road and path in a 100km radius from home.  Unfortunately all the mapping software I've tried is so horribly slow I'd have to buy a new computer to be able to do much at all with the data I can collect.