I am really interested in this, and it's great news what mozilla is doing especially for the open web. Hopefully, their entire OS will be open source, so I can

I am really interested in this, and it's great news what mozilla is doing especially for the open web. Hopefully, their entire OS will be open source, so I can get a smartphone/tablet that's entirely open source. I'm also interested in the javascript element. With asm.js, node.js, webgl, and this javascript is becoming more and more of a serious language every day. However, I am curious, has mozilla published any docs or emulator for developers to write applications and test before launch? EDIT: Found it: https://marketplace.firefox.com/developers/docs/firefox_os_simulator https://marketplace.firefox.com/developers/docs/firefox_os_s...