iDisplay: Turn your iPhone or Android into external monitor for your Mac or Windows PC

Use iDisplay as touch-enabled secondary display: gives you more screen space for everything you have to keep your eye on
Mirror image from main display on your iPad / iPad mini / iPhone / iPod touch: comes in handy when you need to share your desktop with your audience
Single-window mode: use iDisplay for one application of your choice. Quickly move selected apps from list of your favorite apps to iDisplay with one click
Zoom and Pan your desktop right on secondary display
Easily switch between portrait and landscape screen orientations: simply rotate your device and it will adjust automatically