For those of you who have been waiting for "real" molecular nanotechnology to arrive I would suggest that you might want to visit the highlights documenting the work of the Zettl Research Group at UCB. It has movies associated with their recent papers on a Nanoelectromechanical relaxation oscillator, a Nanoscale mass conveyor and a Synthetic Rotational Nanomotor.
I don't know how they constructed these devices but my impression is — this group is *good*!
