The Roku Python SDK by Brian acts as a library and a server to stream local media in a local network. To install, add the private channel to the Roku app, visit MyMedia registration page, and configure following the guides available at http://rokumm.appspot.com/walkthrough
If you want to see in realtime what's going on Digg you can use their digg spy page. This popular Digg feature uses a dynamic Ajax UI to let you see diggs as they happen. And now it serves as a model for a growing number of mashups that use web APIs to give you a realtime window into activity on a variety of services.
Synq has hit the market with a video API designed to bring video capabilities to apps. Unlike many existing video platforms, Synq is not a standalone video management system that brings apps into its ecosystem. Synq hopes that this developer-first mindset will set it apart from other video services.