Glad the dictionary is catching up. We all knew it was a verb all along. If you don't know what I mean, go google it. M-W is paying homage to the trademark by capitalizing it, but real geeks already spell it "google".
It is interesting that "spyware" is making the cut, too, but "mouse potato"? That sounds more like something a mouse eats than a geek. Besides, about half of the real geeks I know use trackballs.