Reply to New Multitouch monitors, will this lead to a DIY Lemur?

So now with popular operating systems like Windows 7 and OSX now supporting multitouch interfaces and monitors, as well as the recent release of several new multitouch laptops, pads, and monitors like this new one from HP:

http://www.engadget.com/2009/10/21/h...touch-monitor/

How difficult would it be to use one of these to start designing a midi touch interface for use with Traktor or Ableton? Has anyone tried using a touch interface yet to interact with dj software in place of a dedicated controller like the VCI? Personally I believe the actual controls in software like Traktor are too small to use reliably with an interface like that, but I was wondering if you could use one as a secondary monitor with a custom designed touch interface. Any thoughts on how to implement this in practice though?

Sorry, I know this post is somewhat rambling, but with all the recent releases in the computing world it really got me believeing of how this will allow us to take digital dj'ing a step forward. With these new screens now costing less than a new VCI-100 I wouldn't be surprised if they started to grow in popularity (of course this would also depend a lot on how responsive they are). If only I had the computer know-how to actually implements something like that...

Anyone else have any thoughts or experience with something like this?