Quettra has raised $2.9 million to compile information on mobile users

And you think apps that track your location are bad! Quettra, a mobile intelligence startup that compiles massive amounts of information about mobile users, just closed a seed round in the amount of $2.9 million. Quettra knows that mobile advertisers can never have enough data about customers. And investors know that, too. This explains why several big names threw down dollars at the startup during the funding round, including Google Ventures, Horizon Ventures, Data Collective, Miramar Digital Ventures, CrunchFund, and SV Angel. Several angel investors participated, too.