This reminds me of something Larry Page said at TED this year: I say, wouldn't it be amazing if everyone's medical records were available anonymously to research doctors? And when someone accesses your medical record, a research doctor, they could see, you could see which doctor accessed it and why, and you could maybe learn about what conditions you have. I think if we just did that, we'd save 100,000 lives this yea…
I agree with Larry, at the same time google is one of the last companies on the planet that I would trust with that data. Much of this internet privacy backlash is aimed specifically at Google and Facebook (and of course the NSA, but let's assume that they don't have any problems getting to your medical data anyway).
But then even if they weren't anonymized, I think Google would be one of the company I would trust the most for that. They know what they're doing in terms of security and of all the companies that know a lot about me, they're the one who consistently delivered great value from the data they have. I'm thinking of things like search, Google Now and the maps interface for my location history. Plus I'm happy that the monetization of my data serves to fund great projects like this one. It didn't have to be so...