Assuming they make money on phones, it is. They can say "Look, mobile app development is just desktop app development! No special environments! Just cross-co

Assuming they make money on phones, it is. They can say "Look, mobile app development is just desktop app development! No special environments! Just cross-compile the Exact Same Code(tm)!" or maybe "It's Just Javascript!(tm)" and all of a sudden they've got a ready-made ecosystem of app developers who don't even need to install any new tools other than what they've already got installed on their desktops to provide content for their phones. More content -> more sales -> more money, and they must be absolutely desperate for anything that might draw developers' attention away from iOS and Android. If you start from the viewpoint that you need to provide a phone-specific display server anyway, you can see the thinking. There are bits I think are wrong with this plan, but it's coherent.