What's Splashtop 2 for Windows RT:
Splashtop 2 – Remote Desktop for Windows RT gives you PC-to-PC or PC-to-Mac high-performance remote access. Splashtop is the ONLY remote access product capable of delivering full audio and HD video streaming and even interactive 3D gaming from another computer. No more cumbersome syncing of files and installing applications across your computers. Provide remote support on your family or friend’s computer across the Internet (access across Internet requires the Anywhere Access Pack in-app purchase).