[H]ard Question: Two Surface Pro 2's in a dual monitor setup?

[Safety]

[H]ard Question: Is there any way to use a Surface Pro 2 as a secondary monitor for another Surface Pro2? I could use 'Mouse Without Borders' or Synergy but it's really important that I'm able to move application windows between the two displays as in a normal dual monitor setup. Maintaining touch input and Wacom support would be welcome as well.

Each Surface Pro 2 has a single USB 3.0 port, Mini DP connector (output only?) and Bluetooth.

 

[Safety]

I think I found a solution: First setup a Bluetooth personal area network between the two Surface Pro's and then use Splashtop Personal which is free for LAN usage. It supports extending a display to the second SP2 as a dual monitor setup as well as touch input. Though I'm not sure about Wacom pressure sensitivity just yet.