I really dont see anything new since SubJunk and others left this project. Its usually mencoder or ffmpeg updates and a few bug fixes
Im now using other servers such as Serviio
. I think PS3 Media Server helped to start using media servers for my Ps3 but now other servers are doing a better job.
Serviio is now my main one, they now include a MediaBrowser so you can watch your videos over 3G or Wifi in a remote place rather than your home.
The cool part about Serviio is they have custom plugins for Video sites.
Twonky has always remained stable, its a big company that makes it so theres always new features.
I think PS3 Media Server has come to standstill in terms of features. But its fine as theres other competition out there