The basic idea here is to build a device that connects to a computer display port (i.e. VGA, DVI, etc) and makes the display viewable over the Internet using a basic web browser. The device would digitize the video output and make it available over Ethernet, Wireless, or other network technology. The device would have a simple web server built in that used a protocol like VNC (http://en.wikipedia.org/wiki/Vnc) to allow us to send the keyboard and mouse events back through the network to the device.
Some systems already have this built-in to allow remote management. This device would allow that capability to be added to any system as it simulates a standard keyboard, monitor, and mouse.