One of the big reasons we wanted to take our games to Ouya is that we could finally see us building a proper library there. You see we've been all over the place - Steam, 3DS, tablets etc and our players of one game don't necessarily carry over to our other games.
But if we had all our games next to eachother in the same store, and started building a really good 'library' of games there, eventually all games would be lifted up by eachother once one of them did good/great. That's the big idea anyway.
But.. there is currently no "related" or "more from this publisher" on the Ouya Store.
I guess it's still early days and the Store will see many updates going forward. Everybody's already talking about the Sandbox, so I would like to instead add in this - Please add a "more by this developer" function!