Yikes! An onslaught of books from the nuttier end of the nanotech spectrum is in the pipeline with the indefatigable Freitas and the recently quiet Ralph Merkle.
Expect more of the usual weirdness of gears and springs made out of molecules and diamondoid flying nanobots all theoretically feasible of course, but eminently pointless if you can genetically engineer a bacteriophage to do the same thing. Come on guys, change the record!