> In short, Firefox OS is about taking the technologies behind the Web, like JavaScript, and using them to produce an entire mobile operating system. Just let that sink in for a moment — it's a mobile OS powered by JavaScript! This kind of happened before: http://en.wikipedia.org/wiki/HP_webOS What went wrong? Well, apparently[1] there were some big performance issues—and IIUC Gecko has some of those already. [1]: ht…
WebOS had a proprietary Javascript SDK or something lame. Firefox OS runs on pure HTML5 standards.
WebOS was straight webkit with additional APIs for telephony and hardware access, and a bundled framework to help with laying out.
Said framework having been extracted for regular in-browser JS[0]
> Firefox OS runs on pure HTML5 standards.
Firefox OS runs straight Gecko with additional APIs for telephony and hardware access, without a framework to help getting started.
It's the exact bloody fucking same thing.