Split Screen lets you easily resize the window that would be up to a drop of the application took up half of the screen, you can do this by simply pressing a button. Gone are the days when you tried to change the window size that would fit nicely two applications side by side with Split Screen it was incredibly easy as clicking a button.
Supported actions:
Resize the window to the left
Resize the window to the right
The window to full screen
The Split Screen settings you can change the keyboard shortcuts for even more convenience, Split Screen.
Requires MacOSX 10.7 or later