Robots, especially those with a slathering of AI, seem to be hot items these days. But even before there was Pepper or Nao, there was robot vacuum cleaners. Samsung, who dabbles in every consumer electronics category, naturally has one as well. And its new POWERbot VR7000 is its slimmest one yet. That petite height isn't just for show, though. The VR7000 was intentionally designed to be so low so that it can get to hard to reach places than neither you nor your vacuum cleaner can gain access to.