Starhawk will engage in all-out war on May 8, the PlayStation Blog announced today. It also reiterated that the game's "public beta" begins today for PlayStation Plus subscribers.
Those who purchased Uncharted 3 can fly into the beta January 31 in the US and February 1 in Europe. Normal ol' PSN accounts can try it out February 21, with Europe receiving access the following day. There are also opportunities to obtain beta codes from GameStop and IGN on February 7 and 14, respectively.
Sony also reminds: "a Beta is a real world 'in the wild' test of the core game systems and gameplay. It is NOT a demo. Most of the final game features are not included."