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Firefox is planning to launch "Firefox OS" in mobile by 2013.
Firefox OS will launch smart-phones built on open web standards where everything will be HTML5 application starting from phone's dialing compatibility to email app everything.
Firefox OS will have to compete with Android as its already ruling the mobile phones. It should provide much more services than android to succeed in the long techy run.
Is there any need of fully open source, HTML5 mobile OS when we already have an Android?
All the best Firefox is what I can say.