Full map of U.S. on PPC?

[buutruong]

Anyone know where I can get a GPS compatible map of the entire U.S. that I can put on my PPC? I really just want the main Interstate and Highway, not street level. I use Streets & Trips 2006 but you can only copy parts of the map to the PPC. So if I travel across several states, I have to send sections of the states to my Pocket PC so I can end up with 10 different little maps.

[Edgar_]

Most of the larger known GPS do this, if you have a large enough card. I have the entire US on one card, but rarely do since searches are slow. Not sure if there is one that only does primary road layer, the ones I know do full detail.

I would think with a large enough mem card Streets and trips does the same

[Sven Johannsen]

Mapopolis has a Major Roads map of each state as well as street level counties. I just looked at Texas and the Maj Roads is 1.4M. Figuring that would be one of the biggest you should be able to get all the maj roads for the continental US in 50M, and then augment with the counties you need street level in.