Rejoyce, a full XBMC Build for the OUYA has been released - if you don't have it installed then go and get it now.
One of the best supported media tool out there right now, with many add-ons which can bring your media to life.
Not to mention Nav-X, which also runs via XBMC.
Check the OUYA store for the download. Once downloaded you can follow the guide to install the wizard we posted here on IHAG yesterday.
We are not sure if this an official release, however the controller mapping is most welcome, however the build has been reported to crash now and again.