There could be pivoted skids attached to the legs. Or wheels.
Keeping it simple is a great concept and I'm all for that. Although one must say that that ship has already sort of sailed with the whole rotary wing concept.
Interesting idea for sure if it can be accomplished at reasonable weight and proper reliability. I guess Peter is headed in the right direction, even though he left out commercial ops...
@ Mechta: How sweet would that be!