So there hasn’t been a lot of games to cheer for since the PSP’s launch — damn few, in fact. Grand Theft Auto… Grand Theft Auto… well, you can’t play that forever. Luckily, Sony came through with what may be the system’s killer app — SOCOM US Navy Seals: Fireteam Bravo ($40). Its intricate story line, enveloping score, and up to 16 player online multiplayer makes it quite possibly the best PSP game yet.