There's no shortage of apps that let you use your mobile phone as a touchpad for your computer, but Touchpad Free is the first we've heard of that adds explicit support for Windows 8 gestures. The remote pointer app should allow your Mango-powered device to play nice with that preview copy of Win 8 you've been running since it hit the web, complete with the multitouch gestures that are key to navigating the metro interface. To get it up and running you'll have to install a small server app on your PC which you can find at the source. Follow the second source link and you'll come upon Touchpad Free itself. Neat huh? Well, what are you waiting for, go check it out.