[Update: We are having technical difficulties with videos (okay, I'll fess up. I left them at home, then I dropped them in the mud, then my dog ate them). We hope to have these difficulties fixed soon]
The technical track videos can now be watched in streaming format.
I'd like to note that the slowness in my demos during the "Developing a HealthVault application" was purely because I forgot to reconfigure my proxy to work correctly outside the Microsoft effort, and do not indicate the speed of HealthVault as a whole.