When you are working on two identical laptops side by side, have you ever tried to move your mouse cursor from one screen to the next?

But only to be greeted by the boundaries of your display. *doh*

I demand for the computer to magically* know that I want to control the mouse on the other screen!

*Magic includes but not limited to Bluetooth, wi-fi, 3G, USB connection, ethernet connection, telepathic sensors, creepy mindreaders, clowns, sledge hammer, or iPod compatibility. This may or may not be patent troll pending.