We've finally had some hands-on time with an official build of Windows 8.1 - and yes, many of the rumours and leaks are accurate. The Start button is back, you can boot to the desktop and use the same image as your desktop. SkyDrive is built in to sync files - on Windows 8.1 and Windows RT. But this isn't Microsoft backing away from what we still want to call Metro; key Microsoft apps like Mail and Xbox Music have been updated, there are new apps for food and fitness and there is a 'modern' version of Office on the way. Microsoft is still convinced that Windows can scale from an 8-inch tablet all the way up to the 27-inch twin screens on your desk at work, so there are changes to the Start screen, new ways of laying out multiple apps side by side on screen and almost all the configuration options from the control panel make it into PC Settings (expect for those boot to desktop settings, which stay on the desktop - right-click on the taskbar to get them). So how coherent does it all feel?