Sony just updated the Playstation Store (about 18 hours earlier than usual!) with 100+ PSP games, including Fieldrunners! Fieldrunners is $6.99, and comes with some new maps. I'm playing it now. The five levels are Grasslands, Crossroads, Drylands, Skyway, and Frostbite. EDIT: First impressions, the game looks great (with updated visuals for the PSP's screen resolution) and plays just like the iPhone version. I love it.