Windows 8 is Microsoft's next version of Windows that features a new Metro-style interface designed for both desktop and mobile devices. It includes two user interfaces: Metro for touch-optimized apps and the traditional desktop. Windows 8 will run on PCs, tablets, phones and gaming consoles. It introduces a new Start screen and full screen apps while retaining compatibility with desktop programs. The new interface may be difficult for some users to adapt to initially. Windows 8 is targeted for release in October 2012.