Using a Wii and a Tablet PC to project a whiteboard application

We all know about the upcoming Surface technology from Microsoft, however this offers another way to interact...from what I see here, I picture radiology images being manipulated for use in Health Care...you do need the software and of course a Tablet pc ,a Wii and a projector to make this work...the software is provided at the website and can be used at your own risk...BD

Since the Wiimote can track sources of infrared (IR) light, you can track pens that have an IR led in the tip. By pointing a wiimote at a projection screen or LCD display, you can create very low-cost interactive whiteboards or tablet displays. Since the Wiimote can track upto 4 points, multiple pens can be used.