Brandon Holland has created an Apple TV 2G plug-in that will turn your Apple TV into a VNC server. What would you use that for? It is up to you to figure out 😉 Any way, here is what he has to say:
Managed to find some time to work on Apple TV stuff. Finished a quick and dirty vnc server plugin for the 2G that I call “Exposed”. It’s method for getting screen data isn’t great and lacks some effects and animation, but it does work without HDMI plugged in. So if you want to try it out, grab Exposed and place it in the Lowtide Appliances directory. I think it is also important to note that this does require a jailbroken AppleTV 2G running Dustin Howett’s beigelist. Crazy busy with work, but I’m hoping to finish my site redesign by the new year. Peace.