Firefox OS running on Firefox web browser
The mobile operating system competition is at its peak. Currently iOS,Android, Windows are ruling the market. Where as Ubuntu is on its way to join the race in this October.In between Firefox has made a simple OS which is built on web technologies[HTML5].With Firefox Users and developers aren’t locked in to one platform, so they can access their info and use applications across multiple devices.
With FireFox OS, Mozilla is trying to bring the Open web into mobile devices too.
Most importantly the Firefox OS will reduce the price of mobile device as it is an open source OS.
you can now try FIREFOX mobile OS right inside your FireFox browser.
Watch this video to install and use Firefox OS simulator in your web browser.
I have tried this OS on my browser. It is not a revolutionary interface but still the point is its usability with minimum hardware requirements. As a web based platform it will be much easier for developers to make apps. Also Firefox OS doesn't take much memory.
So lets hope for a good mobile OS from the maker of best web browser :)