Alright, I'm just going to put this out in the open
First off, I am very knowledgeable about PSP hacking, every time I get into a modding scene, I go right to the top, for the PSP, I used to talk to Dark_Alex and Mathieulh, and now in the Wii scene I talk to Team Twiizers (on rare occasions, they're not around too much)
Now, PSP modding, is legal, if you OWN a PSX game, and convert it to a .PBP file, to be used with POPS, it's perfectly legal. It's what I have to do, actually, since I don't have a memory stick large enough to fit the 1.73 GB Playstation Network version
A Custom Firmware, has never been declared by Sony, to be illegal, just in violation of your Warranty. Which, really doesn't matter, since you can remove all traces of the custom firmware. Another great thing about custom firmware, is that it's like Bootmii, something goes wrong, you can fix it.... Shit, looks like today is going to be a day of PSP modding for me
Now if only I could open it up and replace that damn Analog Nub, I'd be able to finally finish Crisis Core =(