Indivo is built to be extended and customized: users can connect their record to third-party applications that enhance the management and analysis of their health information. Indivo accelerates the development of these third-party applications by providing a core set of common features:
secure storage, categorization and aggregation of health data.
single sign-on and standards-based data-access delegation.
a simple, open, web-based Application Programming Interface (API).
unified user notification.
First review by Fred Trotter: http://www.fredtrotter.com/2010/01/29/hello-world-with-indivo-x/