Microsoft revealed the Continuum feature of Windows 10 phones



From Anandtech:

Microsoft has previously shown off the ability for tablets to connect to larger screens and input peripherals to act as a computer, and they have now shown those same abilities working on a smartphone. This is possible because applications developed for Windows 10 will be universal applications that can scale from your phone, to your computer, to your television.

During the keynote a Windows 10 smartphone was shown connected to a large display via HDMI, as well as to a Bluetooth keyboard and mouse. This allowed the phone to essentially act as though it were a Windows 10 computer, with applications like PowerPoint and Excel scaling to use the same layout that you would see when running them on a normal desktop computer. This type of dynamic behavior extends from interface changes to input paradigm changes as well. Devices may change their preferred input mode or interface to suit the peripherals that are or are not attached to a device.

  Microsoft Shows Off Continuum For Windows 10 Phones