Wow... the idea of Nintendo leaving it's proprietary roots is hard to believe. Especially when Nintendo made all that noise with the new OS they were building and the frameworks to support it.
Having an Android underpinning to it just seems... farfetched.
but if my guess is right with the NX being a hybrid console that comes in mobile and home flavors... it might be the most sound way to do it while ensuring anyone can make / port games to it.
So i guess if it were to happen... it would be a heavily modified OS to ensure smoother Android support.
Well Nintendo already doesn't do everything from scratch. Their browsers for instance are customised versions of open source browsers.