Most android developers try to ensure that their apps work with popular devices whether or not there is an official partnership. I can appreciate the PR value of all these 'an existing android app will work with Ouya' announcements, but I thought that ecosystem compatibility was part of the original value proposition.
I'm pretty sure OUYA will not have access to the Play Store officially, and they will have their own store, which should also filter out all the apps that aren't specifically made for the TV experience. So this is more like an "Angry Birds is coming to Kindle Fire" thing. Just because it's compatible, doesn't mean it will be available out of the box, if it doesn't have access to the Play Store, and since it's a much…