New packaging for an old idea. Not sure about the liquid semiconductor bit, though. What would separate the polarity (pn junction)? It's not like a battery with ions in solution, so how would that part work?
I think public paranoia would kill these products fairly quickly, but I for one would not hesitate to put a Seebeck unit in my laptop or Blackberry, if they could produce one that was small enough and still output enough power. If I remember correctly, conventional Seebeck generators are only about 8% efficient.