So with Windows RT 8.1 we get Miracast functionality which is the ability to “mirror” or duplicate a devices display wirelessly on a secondary display such as a monitor, TV or projector.
Given that the Surface RT does not allow the use of wireless transmitter dongles that you can purchase for none-miracast-capable devices (due to its restricted O/S) is this great news? well yes and no……. although both the Surface Pro and Surface RT are to be supported the RT requires an updated WDDM 1.3 Video Driver from Microsoft / NVIDIA as the currently utilised WDDM 1.2 is not sufficient.
I am hopeful that this will be included in the final 8.1 upgrade or released soon after as it would be another great ability of the Surface RT that would not be as expensive as an Apple iPad/TV Airplay pairing.
Be mindful that you will require a Miracast enabled TV/Monitor or Adapter like the Netgear Push2TV PTV3000 adapter to connect and enable receiving of the Miracast signal should the driver issues be rectified. Although there are cheaper options (some lower than £25) the PTV3000 is well small-form, supported, stable and by an established and respected manufacturer.