Unity, touchscreens and multitouch

Right now we are developing a couple of games for different museums. These are going to be played on touchscreens. I did a bit of research in touchscreen systems, and at least for shooters and RTS games it looks like optical touchscreens are the way to go.
Nowadays optical touchscreens tend to support multitouch technology (for instance: http://www.nextwindow.com/benefits/touchscreen_technology.html) and I was wondering what it would take to use this technology in Unity…

Multitouch displays are somewhat new and not standardized, and as such not natively supported by Unity.

Regarding multitouch you’ll probably have to write an interface getting the data from the drivers and using it in your game (or application as the case might be). What drivers do there exist for these displays?

d.

There are quite a lot of different touch screen manufacturers. NextWindow has published a white paper with several technical details:
http://www.nextwindow.com/pdf/nextwindow_multitouch_whitepaper_v1_0.pdf
Their product seems interesting because it is developed for different platforms, like Windows and Mac.