EdgeCase is a nifty new utility for the Mac. Tons of features on the Mac rely on Fitts’s law. Notably, the Mac makes good use of the «infinite width» provided by screen edges. These «infinite width» edges allow you to quickly access the menubar, reveal a hidden Dock, or slam your mouse into a screen corner to activate Mission Control, Exposé, or another feature.
This stops working reliably once you have more than one monitor. Now, the edge between the two screens disappears. Instead of hitting the edge, the mouse moves to the other screen. EdgeCase solves this problem. With EdgeCase, the edge returns, and works as if you only had one monitor.
To move your mouse to the other monitor, hold down ctrl or ⌘, wait for half a second, or «bounce» the cursor on the edge.1
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