"Ed" wrote in message
...
it should run the garmin software called mapsource. Then if you have a
USB port you can plug in any cheap GPS and use the tablet as the front
end. You can also use pretty much any XP based software that takes a
USB GPS
(or serial or Blue tooth if your tab has that IF


Current versions of MapSource no longer support real-time display from a
remote GPS receiver (although older versions will still provide that
support). Not to fret, Garmin has a new program for just that purpose
called nRoute, and it works much better as a large real-time display for a
remote GPS receiver. Oh, and it's a free download. Go here and click the
nRoute link:

http://www.garmin.com/support/mappingsw.jsp

It's exactly what the OP is looking for. It will provide the large
real-time display for the Garmin receiver on the tablet PC.