I don't really see how something that could be destroyed by a sneeze is going to help Martian exploration, but perhaps I'm just not thinking outside the box.
Given that this project ended ten years ago, looks like it wont happen. But don't say never!: microaircraft are a very active research area, I've seen somewhat larger ones capable of hoisting their power supplies.
Propeller designs did not achieve desired efficiency and the Mesicopter was never able to lift the weight of its own energy source.