If you haven't seen - we published our whitepaper on Github. It describes the Livepeer protocol in detail, and a few possible real-world use cases for the technology. We welcome your feedback, suggestions, or general opinion on it.
We have also started working on the Livepeer desktop app. It's now a simple UI that allows you to stream to / view videos on the network. We are planning to open source it soon so you can start playing with it.