I recently made a video of ScanBot, the robot I contributed to the Idea Book. You can see it below or in our Videos section. ScanBot scans black-and-white pictures using a Light Sensor, and displays the scanned images right on the NXT Display Screen: you don't need any special computer applications to run ScanBot or view the images he scans.
You can also see a NXTLog of ScanBot here.
-Jonathan
You can also see a NXTLog of ScanBot here.
-Jonathan