I debated for a while what rating- maybe a 3 maybe a 3.5.  The basic story is people around the world start buying or receiving ketunkis - a stuff animal of sorts that can move on wheels and have cameras in its eyes.  These ketunkis are being controlled by another person around the world that you don't know.  It doesn't go into who is selling or how the world's governments are trying to regulate privacy.  Most people start off with the curiousity of peeking into another person's life OR people treat their new kentukis as pets.  The dark side of humanity creeps in toward the end.  Relatively short book and a fast read.