I think you are looking short term. Yes, IOS and android dominate. No doubt about it. There is still money to be made as a third producer and MS, does have money , soon new leadership and they do have an ecosystem. Nokia is likely to benefit from it if it succeeds. It will. WP has limitations, but its close to idiot proof like IOS and will gather steam. Nokia will be a beneficiary too. Will top 40 in 5 years, if willing to wait, not a bad investment.