AirPlay like app for the Video-out on Galaxy Nexus

I am trying to get the video out on the Galaxy Nexus to do something other than mirroring. In a perfect world I want to do something similiar to the iPhone's AirPlay, but instead of streaming the video to an AppleTV it just pushes the video to the video out accessed by the MHL cable. I would be alright with mirroring if I could lock the phone and it would still play video through the video-out, but to my knowledge that hasn't been accomplished pointing to this post and this post over at XDA Developers. I know Android has the capabilities because of Motorola's webtop software but I'm wondering if there is a hardware issue involved too because if it's solely hardware there no reason why there couldn't be a viable solution to my problem. Any ideas?