Kaboom: Nvidia Is Making Its Own Gaming System

[zarx]

MDMAlliance said:

"One thing we disliked about dual-screen, both physical and virtual, is that one becomes your 'main' screen and the other your secondary. Your main screen has the user interface, and you can zoom, scroll as normal. Your secondary screen doesn't have an interface, and doesn't allow you to scroll around the battlefield using the arrow keys, just zoom in and out on different bits. This makes it more of a 'secondary' rather than 'second' screen - you end up using it more to keep an eye on things than to actively work on it."

 

I think you should read a bit more of your own things you post.  
With the Wii U, this is much less of a problem.

That is a software (and windows API) limitation not a hardware one. There is no technical reason that this device will have any such limitation, if games decide to support it.