Originally planned for release this fall, Prototype has been pushed to "sometime in 2009".
"Since its announcement, Prototype has been regarded by many as groundbreaking and taking the open-world genre in new directions, and in the simplest explanation possible, we need more time to deliver the game the team initially set out to create" Sierra Entertainment spokesman explained.
In Prototype you play as Alex Mercer, the "Prototype"... a shapeshifter with amazing powers of combat, destruction, and deception. You can consume targets for their form and memories to assume a perfect disguise, or instantly transform your body into an array of deadly biological weapons, cutting your way to the heart of the conspiracy forty years in the making.
Prototype is being developed for Xbox 360, PlayStation3 and PC.