InAir
Augmented TV. Add a second screen on top of first.
5 Alternatives To InAir
DUO by Mobile Pixels
A second screen for your laptop
Duet Display
With Duet Display, you can transform your iPhone or iPad into a second display to expand the screen space of your PC or Mac system.
Le Slide
Easily add two more monitors to your laptop í ½í²»
Mountie+
Connect a second (or third) screen to your laptop
Vinpok Split
Best on-the-go touch screen monitor