Went to a lunch time session on Windows MapPoint; and there are some cool advances going on there. Version 3 is out, so I would recommend checking it out as there are some new features built into it.

Some highlights:

1. Check out http://dev.live.com/virtualearth/sdk for a wonderful array of samples and examples for what is capable and how to do it.
2. MapPoint is available as a web service too for smart clients, etc.
3. Check out MapCruncher, which is a service that lets you upload your own maps and morph them to support the same functional capabilities of MapPoint using the MapPoint services. Check it out here: http://research.microsoft.com/mapcruncher.

Some cool stuff, folks....