Anyone know if the API is powerful enough to let you build an app that can project video and have it play synced audio via headphones connected to the controlling device? Being able to listen to the audio via remote headphones is a killer feature of the Roku 3 IMHO and I would love it if I could do this via my chromecast as well.

(Yes, I am aware that the Chromecast typically plays buffered video from the video source without running data through the controlling device and that having synced audio running on the device therefore is contrary to the design. I'm asking whether this limitation is surmountable by clever programming against the API.)