Ah ok I was starting to wonder if it is more in the technology than the software, starting to think about it after your post I realised that multipoint would involve softwre being able to utilise more than 1 mouse movement (so to speak) simultaneously. However surely a simple midi controller app can overcome this limitation by usingthe touchscreen portion of the monitor as a midi controller. After all midi controllers can activate more than one controller on a mixer or gui simultaneously.
This has got to be a great feature moving forward with W8.