Then suggest people donate to openstreetmap instead! Whether cash or contributing content, what a great idea! I had this thought in the summer and decided I would suggest it to anyone looking for ideas (among other things); real bonus points for anyone who updates an area (whether near them or just one they know well). I also put Open Rights Group on the list, but I think that's more UK-specific.

I already have a nice gps unit so no need for any new technology on the osm front. But that's another option for ya.