Ive said this alot but it was sony that killed the psp......they developed games for the psp as if it were a gimped ps2 which is not what you should do for a handheld......this also inherently gave the psp a really small chance of ever being innovative.
While sony was doing this ,Nintendo built a game library that could only shine on their handheld and no where else .That is also a reason for the demise of the psp.
People could argue that 55 million is great for a handheld and I agree with this , but you cannot be this far behind in :game library , innovation and be beat by more than double the sales of your nearest competition.
N64 is the ONLY console of the fifth generation!!!