In April Microsoft will release the latest version of it’s Windows Phone Operating System – Windows Phone 8.1. Many false screenshots and videos have been pubilshed the last days and weeks. But now WPbar.cn leaked the above screenshot and stated that it is real. What you can see is that you can set separate volume controls with WP 8.1 for ringtones, media and apps. This is a feature almost every user have been clamoring for so long. For me, this and a proper notification center (like iOS) are the features I am most looking for.