The first phrase is mutually exclusive of the third one.
The PSP is nearly completely worthless with out custom firmware.
Maybe not completely useless, but the system loses a lot of appeal without that nice firmware. It really is a selling point imo.
I own and enjoy more PSP games than DS. Go PSP! Go Sony!!!!!!!
PSP is pretty nice right now. I don't need yet another console to emulate on so I am fine with staying with the official firmware. They just added the custom themes too which are pretty swanky. I love my DS but the PSP is a very nice handheld as well.