An anonymous reader writes: Sailfish, the Linux-based mobile operated system developed by Finnish devicemaker Jolla, has reached version 1.0. Sailfish is the result of several failed or interrupted projects to bring a new, major Linux-based platform to mobile devices. It's already runnings on phones sold in India and Russia, but more importantly, Sailfish was designed to be easily ported to existing Android devices. It's also built to support many Android apps. Jolla will begin providing complete firmware downloads during the first half of the year.