One looks like the Segway gone mad, with dynamic 'bent reconfiguration.
Perhaps should best be considered as ideas for mobility devices for the elderly / disabled / *plegics. Still, you'd suffer from the old Segway-type problem - that of looking a complete tool when using one.
I quite fancy wandering about in the walking exoskeleton one and shouting at people 'get away from her, you [censored]!' at the top of my voice.
-- Chris Bardell [Remove favourite mode of transport from email address]