PSP - A mobile powerhouse disguised as a Playstation What's the appeal?

The PSP came out towards the end of the PS2's life and it managed to impress everyone. The graphics on such mobile device were never before seen, and the gaming experience could be compared to a proper console. Yes, the Nintendo DS outsold it... But does it really matter? Do you need to be the most popular in order to be the best? I'd reckon no, and that's why the PSP will always be an all-time great gaming console!