Addendum: this isn't to say that I wouldn't welcome more diversity in many places. But it's not like people haven't tried: Microsoft still hasn't quite thrown

Addendum: this isn't to say that I wouldn't welcome more diversity in many places. But it's not like people haven't tried: Microsoft still hasn't quite thrown in the towel with Windows Phone, but it sure never went far. Blackberry used to be a big thing, now it's basically dead. There were some other attempts, like FirefoxOS, Meego/Maemo, etc. which all flopped hard. The problem with a platform is that the things dependent on that platform become powerful, so people choose their platform based on what runs on it. If I want access to all the apps in the Google Play store, I need to run Android, not WinPhone, for instance. The same thing has hampered Linux-on-the-desktop adoption enormously (and not on webservers, since that's all standards-based and frequently uses additional stuff like PHP and MySQL which run great on Linux).