Microsoft just demoed its 2-in-1 Continuum feature on a Windows 10 phone giving the mobile device the ability to become a really tiny desktop computer. Continuum adjusts the UI of Windows 10 on a device from desktop to tablet mode based on what's plugged into it. If you plug a keyboard and mouse into a tablet or phone, it goes into desktop mode. When those are unplugged, a pop-up asks if you want to enter tablet mode with touch input. Desktop mode includes the Start Menu and Taskbar you usually associate with a full-size computer. For anyone that travels who would like to pare down the devices they pack, this is great. Corporate Vice President of the Operating Systems Group Joe Belfiore did note that phones would need a hardware upgrade to fully implement the feature.