Originally Posted by
Jax Rhapsody
Yes, we've seen it
it is a modern remake of a very old design;
lookup 'treadle bicycle'
http://en.m.wikipedia.org/wiki/Treadle_bicycle
they are obsolete as of the invention of chain drives,
also see the 'Alenax bike' for a past failed attempt at revival of the concept:
http://sheldonbrown.com/brandt/alenax.html
i doubt this new product will fare much better in the long run
p.s. check your spelling