So it's more agnostic for mobile development than the native mobile development you're clamoring for?
Also it's really not a big step for them to polish the desktop experience. They just released 0.2.0, give it time and I really do think that it's going to be a great platform for both mobile and desktop.
You can build that functionality if it's really a problem. Also surfaces within Famo.us afaik are just like normal sections on a webpage where your normal tabbing and arrow keys will work.
But if you're building more traditional looking web apps in famo.us, I don't think you'll run into the issues you're talking about.
Also it's really not a big step for them to polish the desktop experience. They just released 0.2.0, give it time and I really do think that it's going to be a great platform for both mobile and desktop.