We wrote only a few days ago about a complicated windows rt jailbreak which allows unsigned ARM apps to be run on Windows RT.
Now the jailbreak has been simplified and automated, allowing anyone to jailbreak their Windows RT tablet and install a number of ARM apps such as VNC or Putty.
If this jailbreak persists for a few months one can imagine the library of ARM apps will greatly increase, of course also increasing the value of hack.
The hack does not persist across reboots, but that is really the only complication which will stop the general Surface community from using it.
Read more about the hack and download it from xda-developers here.