I'm trying to put together a PDA-based GPS setup with a Palm TX and a generic Blue tooth receiver, but I can't figure what to use as far as software is concerned. The De*lorme bundle (StreetAtlas+Topo) looked yummy for a comprehensive (roads and backroads) coverage and not that pricey, @ $80 or so at Am*azon, but its gets terrible reviews for users, especially the StreetAtlas part. Tom Tom Nav 6 isn't that well-rated either and much more expensive. Anyone having experience with those brands or other ones? Thanks!