The iBOT is an extremely versatile and stable wheelchair that can actually stand on two wheels. In 2006, the iBOT retailed for $26,100 with a required prescription. New models are no longer being manufactured and support is expected to end in 2014.
While its name might give you the impression that it's the next big Apple product, the iBOT was actually developed by Dean Kamen, the inventor of the Segway. While they both share a common trait allowing humans to travel on two wheels, this is where their similarities really end.