Agreed - My first reaction was "Google == Cyberdyne Systems". I hope a lot of good comes out of this, but I cannot help but think of worst case scenarios. Then again, maybe I consume too much sci-fi movies and books.
It doesn't help that the robots produced by BD look a bit like the ones from "robots versus humans" movies. This acquisition feels a bit scary, but also very exciting. In reality, self-awareness is probably far enough away that we don't have much to worry about for now.
Robots won't be that scary when they are self aware. It is at the stage just _before_ self awareness where they are easily controlled and very powerful.
You only need to read the news about what the government is doing with drones abroad, or with military equipment at home to think at worse case scenarios.