Celebrate the PSP's second b-day with its 10 best games

In commemoration of the PSP's second birthday here in the states on Mar 24, GamePro profiles 10 games they say you should either own or add to your library. LocoRoco and Lumines are at the top of the list including some honorable mentions. When the portable isn't flogging or trying to differentiate itself as a unique platform, it's busy selling shipping a solid 25 million systems, more than any other non-Nintendo handheld to date.