It builds on the SmoothHD and IIS.net demos with a very nice GUI, and an awesome use of some of Silverlight’s RIA style-features. For example, A magnifying glass with user control over magnification level. Which is crazy cool, and actually kind of useful when doing demos.
It also offers manual stream selection so you can simulate the experience at different bitrates.
Anyway, it’s a blast. Give it a spin.