I would be a bigger fan if there were some included phonegap utilities & tutorials.
Famo.us is making the same mistake for some reason. Aggressively targeting mobile, with half of the toolchain missing to actually shipping mobile apps.
Not that I can blame the OP, who is likely not a SF startup with millions in funding.
Like the others said, this is written by Kik Interactive (http://kik.com/) which is well-funded.
The idea is that Kik's browser has the PhoneGap-like utilities that you described built-in, while this is a library for building the UI of an application. http://dev.kik.com/
It's actually a Canadian startup with millions in funding, but this is not their product. It's the Kik messenger, which has a built-in browser. They provide this library to make making apps for their messenger easier.
Famo.us is making the same mistake for some reason. Aggressively targeting mobile, with half of the toolchain missing to actually shipping mobile apps.
Not that I can blame the OP, who is likely not a SF startup with millions in funding.