out of curiosity how are you going to process the data from the overlay? are you also writing custom software or is there something thats commercially available?
There is actually lots available that are compatible with osx. The link is for a 4 wire pcb to usb controller.
http://www.hometouchsystems.com/TouchScreen/touch-screen-controllers.asp
Software is linked on that site to
http://www.sztoptouch.com/images/download/drive/TouchKit_MACOSX_Intel_1.10.5214.zip
That's some chinese site selling touch screens overlays, but alot of sites that I have found are using this same software.
The hard part is finding a 13.3 widescreen overlay and a internal usb source.
I'm thinking about using the IR receiver usb port and removing my superdrive. I would then put a usb hub to the IR usb port and just plug in regular usb's (instead of soldering) for any perihps. Such as touch controller, gps, 3g modem... The usb port can put out 500mA so more than enough for 3 perihps at 50mA.
Taking out the superdrive would allow for more than enough room for all that stuff. Don't use it much anyway, would rather have touchscreen, gps, flash drive, etc..
EDIT:
english version of that site.
http://www.sztoptouch.com/english/index.htm
some important data is in chinese tho.
It looks like that 1st site is just a UK reseller of the chinese site. And that software is still beta.
Worst case is to get my Comp Sci friends to write me some code and then start a company like Axitron (Modbook), lol.
