Trusting Mayo a bit to do the right thing here, I believe they will rein in Google's lust for reselling personal data, and limit the partnership to providing labeled data Google will use to train their latest pattern recognizers.

I suspect Mayo also hopes Google can break some new ground in analytics beyond munging mere patterns. No doubt Mayo would love to explore all kinds of advances in medical practice using novel monitoring and instrumentation, esp. in the clinic.

No telling what Google has proposed: maybe a lot, maybe only a little. Their announcement says nought.