This particular PoC was about adding a rich front-end to the dezineforce.com application. There's a lot more to it than just "a Silverlight app that runs against HPC cluster" but the video was intended to focus on this one aspect. You can read more about
the overall dezineforce offering at http://www.dezinforce.com.
This video doesn't use adaptive streaming - it's a straightforward high bitrate stream. You have the option to access a lower bitrate / alternative format from the dropdown below the video. To see a great demo os Smooth Streaming, try
Sound is working fine now. There were problems with the embedded Silverlight player yesterday (I noticed it on other videos across C9). This is a high-bandwidth stream intended for watching full-screen. If you find it's doing a lot of buffering I'd suggest
you grab the download high-bandwidth version via the "Formats" link.