A team sponsored by Uruguay’s Universidad de la Republica has developed a simple electronics kit that can be used to modify an XO-1 to let you draw on its screen with a wireless stylus and a thin acrylic sheet, turning it into a touchscreen. Christoph has written more about this and their related robotics work.
The methodology described in their project poster is brief and tantalizing – it looks like a most promising idea. The invention can in theory work with any screen or computer, but here they are showing how it works with an XO. Here is a closeup of a Lapix set in action:
Check out the photo and transcription of the project poster after the jump.