Ubuntu has a very ambitious goal with Ubuntu Touch. It proposed an operating system that could work equally on any capable device, a smartphone that can truly be your computer, no holds barred. That was the promise of Convergence, which we took for a spin with the Meizu PRO 5 smartphone and, before that, the bq Aquaris M10 tablet. The results back then where disappointing yet promising. Ubuntu Touch, as it was when we reviewed these devices, still lacked that punch that would make you truly go "wow!". But, unlike other operating systems, Ubuntu is fast evolving, and the latest OTA-12 brings much needed improvements to bring us closer to true Convergence.