oh sorry - though you could probably do without the actual AppleTV device... It seems there is 3rd party software for making the remote act as a mouse, but I haven't been able to make it work probably yet...
Just an idea.... Is anyone working on a port for AppleTV?
Basically it's the same as OS X but it would be cool to have everything integrated nicely into the AppleTV user interface and with support for the Apple remote.