EDIT:Ok there have been some problems with people using psp's on forums double posting, to stop it u have to:
When you post and click Answer DO NOT Reload the page or use the back button (L Button) just go to the sidebar and click home or forum
da best firmware out for PSP is 3.40 OE-A u can play psx games and shit i dont even have 2 pay for games anymore. u can also change the xmb theme which is sik az. my PSP is so fu*n cool. got like 40 games
[ IF U BRICK UR PSP MSG ME ON MSN AND ILL TELL U HOW TO FIX IT]
IMPORTANT* IF U EVER BRICK UR PSP DONT TELL UR PARENTS....LOL
got ya, i almosted bricked my PSP once while downgrading but i accedntly upgraded to 3.11 so im waiting for downgrader for that, dark_alex is almost done with it, ive once gotten a PSP firmware spoof it was cool