An old co-worker used maps of WDW from this site on his Windows PDA - I haven't tried any of the features as I have a Palm - so use at your own risk. As I recall, the maps were pretty handy for someone who worked on the WDW site semi-regularly but never had time to memorize a map, could be useful if you just want to always have a map with you, but no one here is that geeky-right?

:)

http://pocketdisney.com/

Wishful
(again, not affiliated, haven't used, etc.)