3M’s M2256PW 22-inch desktop display supports up to 20 simultaneous touch inputs and has a gesture capability.

The display features a high-definition 1680 x 1050 LCD screen, DVI and VGA video input, audio input, USB and RS232 (serial) dual-mode communication protocol and durable, anti-glare front surface.

It is compatible with Windows 7, so no third party touch drivers are required.

For Linux and Windows XP/Vista/7 operating systems, 3M plans to offer a multi-touch driver and software utility, and will offer communication protocol documents for customers who wish to develop their own drivers.
 
For more information, see http://www.3M.co.uk/touch