Google is in unique position, because they are a company with a track record delivering software in massive ecosystem scale. Non-US companies like Samsung, Nok

Google is in unique position, because they are a company with a track record delivering software in massive ecosystem scale. Non-US companies like Samsung, Nokia, and every Chinese company, cannot write quality software, based on the 25 years of track record. This is why they all depend on Google for Android. This has been discussed earlier on HN why is this and it comes down to corporate culture and such matters.