Next step is to load MP3 support into 38 and try to get an opt build off the ground, then pull the latest 38ESR, port these beta changesets to that, and make a public release. Father's Day and a class paper are in the way, but I'm shooting for getting something into your hands in a week or so. MP3 support may not be in the initial beta (or may not be fully finished), but I fully intend to complete that somewhere in the 38 timeframe since it obviously works.
Along with 10.4Fx 38 I've also been working on a more generic solution for video and Flash-only content, as well as a personal labour of love for the first computer I ever had as a kid. You'll get to play with both of these very shortly.