Interactive whiteboard with a Wiimote
If you haven’t seen all the cool stuff that Johnny Chung Lee is doing with a Wiimote, you should definitely take a look at his projects. You’ll see that Johnny is not only a good engineer but he’s also very good at making his projects attractive.
He has a video on how to make a cheap interactive whiteboard or how to turn your laptop into a tablet pc, with a Wiimote. This could be pretty handy for using Chinese character recognition!