Replacment for M$ MAPPOINT

[Grizzly]

Does anyone have (or know) a replacement for M$ Mappoint on Ubuntu (or any 
Linux I guess) or know if it is possible to install & run under wine

For anyone who is not familiar with Mappoint, its a GPS enabled Route finder 
like AutoRoute but far better.

Web based route finders (GoogleEarth, GoogleMaps etc) are out, one they are 
to slow and require a connection to web

even here under bast case both Google map things hang and drag when moving 
around