This looks very interesting.  A place for you to control your own medical records.

http://healthvault.com/

When it's your job to protect your family's health, you need every advantage. Imagine if you had a way to collect, store, and share the health information critical to your family's well-being.

HealthVault is the new and FREE way to do just that.

This is an interesting move by Microsoft, I think it is an astute marketing decision.  The concern over controlling your health care and the growing technical competency of the general users...the timing seem fairly on the mark.