Microsoft's Continuum has most likely sparked the imagination of many a developer. To be fair, it's not alone or even original. Ubuntu showed off its Convergence idea long before Windows 10 even hit the scene, a dream that has started to become reality with the bq M10 tablet. Now a hitherto unknown group of developers have revealed what they call Maru OS, which brings a touch of Convergence/Continuum to Android. The difference is that you actually have two operating systems on the same device.