For those that have seen Intelliremote it allows you to use your iPhone like a standard remote control for your MediaPC or DVR PC. It is lacking 1 thing. Instead of just having Left Right Up and Down keys why not an app that lets you use the iPhone as a touchpad to control the mouse cursor, basically turning the iPhone into a Wifi Touchpad, you have NO idea how much that would make my life easier

I hate my Media PC Remote for doing admin so I have to drag out my mouse and sit in front of the tv on the floor... What do you guys think possible? Already done? Already in Dev?
Oh and BTW I'm looking for something to use on Windows XP/Vista