What Google's Marissa Mayer calls "The sensor revolution" is upon us and multiple fitness sensors are on the market. Loic le Meur just called for a "body API" to handle the data these generate. In his talk Paul argues that it already exists and is called Twitter. Tweeters are already sharing #fitstats, weigh-ins, and #nikeplus and Garmin #runs by the thousands each day. It's in Twitter's best interest to encourage this behavior as data is a growing business and in the tweeters' best interest too as illustrated by a recent Kaiser Permanente study but the system needs to be optimized. @jpmarcum, marcum.com