Hey there- If you're interested in building location-aware applications, and if you're going to be at PDC this year, come check out the session I'll be presenting on Location-Awareness in .NET 4.
Here's the information:
Building Sensor- and Location-Aware Applications with Windows 7 and .NET Framework 4
How many times have you thought to yourself, “My application would be so much better if it knew where the user was?” With Windows 7 and the .NET Framework 4.0, you now have the tools at your fingertips to location-enable your applications. Based on the new Location platform for Windows 7, the location API in .NET Framework 4.0 provides a single, consistent API to get you your latitude and longitude regardless of the underlying technology that acquired it—allowing you to focus on creating exciting, differentiated location-aware applications.
See you there!