New Touchless SDK brings Multi-Touch using a WebCam
This project looks awesome, now if only I had a WebCam so I could test it out and start playing with it. Anyway, the new Touchless SDK (and it's Open Source!) brings the ability to have Multi-Touch input within an application without the user needing to actually touch the screen, all with the use of a standard WebCam.
Project: http://www.codeplex.com/touchless
Video: http://www.officelabs.com/projects/touchless/Pages/default.aspx