One of our forum members posted about an open source social networking project which uses the Bluetooth.NET library. The project is created by Software Greenhouse which is a joint venture between Microsoft India and Cynapse.
Their initial prototype release and source code can be downloaded by registering at the Software Greenhouse site. The software will allow users of Windows Mobile devices to compare user profiles to look for shared interests and chat with other users. This is an interesting use of the technology and it will be interesting to see how the project evolves. Have you used the Bluetooth library in any projects? if so please leave a comment.