It's a lot better
The Ouya will be getting a very nice looking new interface, as spotted on Engadget. Ouya hired on a designer to try and make the user interface look better, and I think they pulled it off. This new screen looks better, and it's supposed to make it easier to find games by adding a discover section.
Along with the new interface, the Ouya will be now be able to use USB hard drives, and you'll be able to queue up games from your web browser to download to the Ouya.