This week we released a RubyGem for Viddler's Video API. We created it for our Beanstalk help system so we could upload video in each post, then pull back the player code to embed screen casts. This way we avoid multiple steps and we can manipulate how we present the video and video previews.
http://viddler.rubyforge.org/rdoc/
We will be adding a page to our Labs with examples and documentation soon. Let us know if you like it.