I'm looking forward to desktop UIs also being supported by something like this -- e.g. native Windows, GTK+, and Cocoa widgets. Then we'd have a true framework

I'm looking forward to desktop UIs also being supported by something like this -- e.g. native Windows, GTK+, and Cocoa widgets. Then we'd have a true framework for writing GUI apps that can share most of their code across the whole range of platforms, which would make me literally stand up and start singing right now. Lalalalalalala! If you coupled this with conditional stuff around what kind of form factor you're on (screen size, etc.) you could design mobile first UIs that gracefully enriched on a larger form factor. Lalalalalala! I don't know of Facebook cares, but I WILL PAY FOR THIS! For a well-engineered modern platform that did all of the above I would pay thousands of dollars. So if the choice comes down to staying free and abandoning this effort vs. making it a profit center, please for the love of all that is holy take my money. Really when you look at the labor costs of developing parallel UI efforts on many platforms, a cross-platform dev system that delivered a high quality native-feeling experience across every major platform could be worth at least tens of thousands of dollars to millions of people.