We do have some playlist support going into the framework this sprint. Since each playlist format requires a different parser (SMIL may require a different parser than M3U), we have put in a LoadableMediaElement which helps in writing a playlist parser. There is a FMMLoader and Manifest parser currently in the trunk, but it's still a work in progress. This can serve as an example of how to use the LoadableMediaElement to make a playlist. To make a custom parser, subclass the MediaElementLoader, and return a MediaElementLoadedContext. The MediaElementLoaded Context will be the base of the playlist (such as a SerialElement, filled with VideoElements).