4.3-inch USB LCD Monitor
The Nintendo DS has long had the bragging right of dual screens, so it’s only suitable that someone would enter the market with an external stand alone 4.3-inch 800×480 LED backlit LCD screen, right? The Century made LCD is compatible with OS X and XP/Vista, and requires no external power source since it connects via USB. It sure as hell would make for a suitable IM window while gaming, or you could just invest in one of these.
Oh ya, it costs $200, as much as a 19-inch LCD.
It’s available here