I don’t know if this is relevant to anybody’s work, but I’ve been piecing together a web client on my own server. I’m doing it through PHP, Flash, and some crazy Javascript action. If anybody would like to look at my source, I could (clean it up first, of course, and) post it. I’ve set it up specifically for my system, so it’d also require a bunch of work to make it universal.
I use PHP to query the database directly, and create an object based on those results. It prints a table, and a Flash file on top. Whenever a song is doubleclicked, it sends a message to the Flash file to request a playlist – which is an XML file that PHP puts together. Songs are transcoded on the fly, and plays through Flash perfectly.
If anybody is interested, let me know.