It was nothing more than an off the shelf ARM SBC inside. Some third party designed and made the board. Nobody had the bootloader keys to unlock the units. It was easily bricked. No keys to recover it. They had sold it as a device for “hackers” but nobody could really hack it. The whole concept was dead on arrival.
Several years later people discovered weaknesses in Nvidias bootloader code. The Ouya is vulnerable. So they’re finally wide open hackable. But nobody cares anymore.