Wow. Ok, I might be the last person on earth to know about this. But have you ever tried holding down ctrl when using the scrollwheel on your Mac? Try it. I think I’ll actually use this during these holidays, since I’m home, and the only display I have is the 12″ on the PowerBook, yet I’m still using an external keyboard and mouse, so the display is quite a length away.
Description: ctrl-scroll will zoom in on your screen, allowing you to move the zoom around with your mouse. It’s like the Wii web browser, except systemwide.