Been jonesing to see what Windows 10 looks like on smaller screens? You now have your chance. Microsoft has just released a Technical Preview of the new OS for smartphones. This extra-early version won't include the next-gen Spartan browser and still has a lot of unfinished elements, but it'll give you a good sneak peek at Action Center upgrades, across-the-board voice dictation support and the better photo browser. Future test builds will also bring the much-improved Calendar and Mail apps, unified messaging and phone versions of universal Office apps.