OUYA Custom ROM support
It looks like the crew over at XDA are already on it:

XDA OUYA
Main Page

Ouya General
Discussion about the Ouya Android game console (general, tips &amp; tricks, etc)

Ouya Q&amp;A, Help &amp; Troubleshooting
For all of your questions relating to the Ouya Android game console

Ouya Android Development
Android development for the Ouya game console