There are only a few things left for a first release, so it should be here soon (and by soon I mean, probably before march).
About OSS: we don't want to stick with a deprecated API. The problem is that some apps (and mostly emulators...) does use OSS exclusively, even if they are SDL based. I tried to compile the AOSS lib, so that the apps using OSS exclusively would be usable on OD too. But I'm running into performance issues.
Well I didn't really have time to work on that, I'll look into it once again. If you want more information, just hang around in freenode #dingoonity.