Mod lets you use your PSP as a 960×544 resolution passive display. Program works for both slim and original versions if they’re running on custom firmware, and will hook up to any computer that’s running Windows XP. Vista users hoping for some tiny screen goodness are out of luck this time around. It’s a good feature if you play games, and have an instant messenger in the background but don’t want to Alt+Tab. Would make a fantastic monitor for camcorders. Play games in between shots.”]
Source: https://gizmodo.com/psp-hack-turns-your-handheld-into-a-2nd-computer-screen-5060374