The average white board presentation get-up cost about two grand. For the professional presenter, such a device offers a wide range of neat visuals for sales, motivation, demonstrations, etc.
for the average gub'mint school teacher, or a shoe string small
business person, or a medical volunteer in remote, impoverished
countries, this lil Radio Shack Wii hack for about $50 bucks might be
just the thing in such a situation.
Johnny Lee demos
his cool Wii Remote hacks, which turn the $40 video game controller (+
a few extras) into a digital whiteboard, a touchscreen and a
head-mounted 3-D viewer. (a great 5 minute video)