Sierra’s taken the decision to move Prototype into 2009, according to this IGN report.
“Sierra Entertainment and Radical Entertainment have made the decision to shift Prototype to launch in 2009,” said a publisher spokesperson.
“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.”
Better late than borked, so we applaud. Shame, though.