Size Up (Splitscreen Application)

SizeUp is a Mac application for OSX 10.5 (Leopard or later) that allows the user easy manipulation of windows to fill exactly half a screen (splitscreen), a quarter of the screen (quadrant), full screen, or centered through the use of hotkeys.

NOTE: To watch the video in FULL screen, press the X in the bottom right (beside the yellow volume bars)

SizeUp - Split Screening Application (MAC OSX)