Hey, I got Ouya today and was wondering same question, didn't want to open new thread after I saw this.
This what I did, I exported and compiled my game on CocoonJS as Android APP. Then I uploaded Debug Unsigned apk to dropbox, logged in to dropbox via browser ON OUYA (make-Software-Browser)
and Downloaded APK file,
now this was confusing, in Manage-System-Advanced-Storage-Downloads you can see your apk, hit O button and this will install game, which can be played from Make-Software
my game was based on touchpad, and it works well on Ipad3 and Ipad 1 and Amazon Kindle Fire, but on ouya perfomace and FPS was crappy.
Then again I have not done anything else, just cocoonJS Android Build.
If there is any porting tutorial for ouya Please share, if not I will try to report what I learn about this.