After getting facebook API and twitter API both to work - i'm digging into the google health API/Google oAuth protocol. Collection of notes below...
types of oAuth
getting started: http://code.google.com/apis/health/getting_started.html
you'll eventually need to start using H9:
https://h9.google.com/ - the sandbox environment.
more on google oAuth
oAuth Playground (FANTASTIC!!!)
possible plug and play solution...
more to come as i figure this out...