[quote=http://techcrunch.com/2014/04/28/geeksphone-revolution-multios-handset-gets-price-drop-wider-availability/]Spanish smartphone startup Geeksphone has OS updates in the pipe for its Revolution handset – which differentiates itself from other Android handsets by offering the user the option to download and install Mozilla’s Firefox OS.
The Revolution does not support dual booting of both OSes simultaneously. Rather the phone comes with Android pre-installed, and gives the user the option of switching to Firefox OS. Doing so means overwriting the Android installation and losing any associated data — but you get the aftermarket choice of switching to a different OS simply by selecting an option in the system updates menu.