Betting on the mobile OS seems old fashion to me. In a few years we'll have complete parity in mobile. It really won't matter what OS you use. Even today we're

Betting on the mobile OS seems old fashion to me. In a few years we'll have complete parity in mobile. It really won't matter what OS you use. Even today we're pretty much there. I don't think Android can Windows-ize SmartPhones. There's too much competition and already too much parity. Google has a big problem if people are buying Android devices to mostly spend their time in non-Google services with non-Google ads. They'll still have a lot of mobile advertising but it may not be in the same ballpark as more targeted ads closer to the services/apps people are sharing data with.