Google is your friend.
There are lots of sites offering free Poi files. These file will mostly be for garmin, tomtom etc but you can convert and import them using my program Poi_Loader see http://www.internettablettalk.com/fo...9345#post49345
and http://www.rikcull.f2s.com/
This is Windross only for now but there are linux and N800 versions in the pipeline.