I've been searching ever since I got my Desire for a WMC remote app. The closest i've had so far is gmote using it as a mouse. Then I found myRemote by chance looking in the Just In. It requires a much much more lightweight PC component than gmote and hooks into WMC perfectly. The only thing missing is a record button. It can act as a mouse too so I can get rid of gmote as all my media is on my WHS which gmote can't access to directly play from anyway.