yeah, i've seen those. they use the 3m controllers and panels which are supposed to be very good. keep in mind that they are single-touch capacitive. also, if you go down that path, make sure the controller he includes is the HID controller which supports Win7 touch, NOT simply the mouse emulator type most resistive controllers use.
The lilliput controller actually has some drivers which support Win7 touch, see thread here: http://www.mp3car.com/vbulletin/inpu...uchscreen.html
After reading that thread I installed them on my carpc. Software needs to be written to support the new Win7 touch API and you get gestures like flicking through lists for "free" from the API. current carpc software doesn't support it though.