IP from that Motorola Mobility acquision? Like Ad Mob, they were baited into buying and over-paying for the wrong company and got a whole bunch of worthless IP. They do amazing things at Google though, they are a website right? Super competitive being 6 characters in a url address away from irrelevency at any moment.
Just because Google doesn't choose to aggressively wield Motorola patents to sue others that want to play in the same playpen they do doesn't make the IP worthless. On the contrary it has inestimable value by not being used in protectionist efforts to strip away profit and resources from other companies. If you think Google is simply an ad company you don't pay attention. Perhaps you should do a bit of reading outside of AI or other fan sites.
Here's one that might have a little interest to you:
Edited by Gatorguy - 12/19/13 at 11:57am