It's highly specialized but it looks very stable, especially with the pedal brake system. Most hospital/medical equipment is expensive anyway so maybe there is a market for use in hospitals and rehab centers. Nice concept.

Very Cool! I wrote a post about summer vacation photo scrapbooks. Our school, like most, has summer reading lists. Kids with learning disabilities many times struggle with reading and we're always scrambling at the end of summer to finish the books. This year we're doing photo scrapbooks. We still have to read the books but the scrapbooks give the kids a sense of accomplishment that they don't get from reading. They're much better at taking photos than reading, anyway. You have proof here! Looks like my daughter's photos.
My recent post Learning Disabled Does NOT Mean Dumb