Over on the HealthVault FAQ blog there is a new post, Meet the Upgraded HealthVault Developer Center.  Rather than cross-posting it here, if you are a developer, have an interest in HealthVault data type schemas, want to add sample data for any data type, or just want to see what's new with http://developer.healthvault.com (the online tools complement to our main MSDN HealthVault Developer Center content)... head on over and check it out.