Padbury Clock Screensaver - Minimal screensaver for Mac
Mountie - Mount a second screen (iPad/iPhone/tablet) to your MacBook
XScreenSaver - XScreenSaver is the standard screen saver collection shipped on most Linux and Unix systems running...
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.
Clock Screen Saver - Clock Screen Saver is a free cool looking screen saver that displays the current time in the way of digital or analog clock faces.
Luna Display - Hardware that turns the iPad into a wireless second display