I second this.
I own a tablet running Windows 8 (not Windows RT) and the game runs fairly well on lowest settings, but cannot be controlled by touch.
Since the controls already exist for the iOs version and since more and more Windows 8 devices will be coming soon I would really like this emerging market to be taken into account.
I would even buy Back to the future and Tales of Monkey island (although I usually steer clear off comedy games) if they supported multitouch controll on a Windows system.
There is just something immeasurably cool about sitting in a bus and playing point-and-click adventures by touch.