This just seems like a smart call. Some of the largest companies have made the mistake of making themselves dependent on another company for their business model, which can leave them in a bad place if the relationship sours or the platform changes. The old example of course, is Facebook games, where companies like Zynga pretty much exist or don't at the whims of Facebook's policies.

Samsung of course has Tizen as a fallback. I wonder how many other manufacturers may have fallback plans in this regard. Because if Android goes away, the only other slightly popular OS they can license for their own devices is Windows, which of course won't let them customize the platform as much.