This video shows Gran Turismo for PSP being played on a 22" desktop screen. The player uses a Logitech Driving Force Pro wheel through USB. This is possible with a PSP 1001 series (fat model) running CFW 5.50 GEN-B2 and RemoteJoyLite PSP plugin.
required softwares:
*PSP side
-PSP fat with CFW 5.50 GEN B2
-RemoteJoyLite 0.2a (seplugin)
*PC side
-RemoteJoyLite 0.2a (exe)
-PSP Type B driver (PSP Type B Driver install - Multi Language)
No extra hardware needed.
Update
Get RemoteJoyLite for PSP & PC: http://tinyurl.com/yattl4z
You can even use a PS3 Dual Shock 3 on your PSP with the following driver (ds3drv_1.02 "SIXAXIS/DUALSHOCK3 HID Minidriver")
http://tinyurl.com/ydys83q
To set the DS3's controls:
-plug-in your PSP to the PC's USB2.0, and wait for the XMB.
-launch RemoteJoyLite and enter its settings by pressing your keyboard's ESC.
-plug-in your DS3 to a PC USB port.
-select the "Joy" tab then press and hold your DS3's CIRCLE button and click the matching button on the "Joy" tab with your mouse. A button number will appear in the CIRCLE column. The DS3's CIRCLE button is set, now follow this with every buttons.
-"Save" and you're done.
-if you have made this but the PS3 controller doesn't respond, make you sure that you are selecting the RemoteJoyLite window with the mouse.
-to watch your PSP in full screen just double click the RemoteJoyLite window.
-if you have framerate issues you can lower it from 60fps to a locked 30fps. to do this just enter the RemoteJoyLite settings and select the "PSP" tab then set the "Transfer FPS" from "------" (default 60fps) to "30 FPS". you can monitor the FPS with your keyboard's F1.
You can even plug-in a pair of PC speakers to the PSP headphones cord to get the best non-handheld experience.
250°
0°
20°
0°
20°
Ad 
20°
+ It looks better than Forza 3??? ;-D
facts :|
http://m2.n4g.com/8/Images/...
http://img36.imageshack.us/...