You know the problem with various consoles? They're not PCs. It's a downfall that they can so rarely overcome. So how about turning your PSP into an extra PC monitor? Why? Don't ask annoying questions - because you can!
QJ.net pick up on a project by Jochen Schleu, which allows a PSP to act as a second monitor, with an extended desktop. Best use I can think of: two PSPs as wing mirrors for your PC. Anyone got any better suggestions? Video of it in action below.