The entire MobiHealthNews team is at this week's Health 2.0 event in San Francisco where more than 1,600 people are in attendance, according to the show's organizers. While that's an impressive number, Health 2.0 co-founders Matthew Holt and Indu Subaiya announced that they were now tracking more than 2,100 companies in their Health 2.0 Index -- up from 1,700 companies that Health 2.0 tracked...