I don't disagree, but GoogleX is _not_ Google's research arm. Google Research actually produces very cool stuff that's beneficial to the company, and does so at a pretty rapid clip. GoogleX, on the other hand, takes bold, but not really research-worthy ideas and milks them for PR for years before they quietly die.
Where do I even begin. :-) State of the art achievements in object recognition, speech recognition, reinforcement learning, natural language parsing, natural language understanding, and so on and so forth, across the board. They employ basically all the prominent names in deep learning, except for Yann LeCun and a handful of others. Their research team is worth its weight in gold.