February 2011's Portal 2 is now April 2011's Portal 2, according to publisher Valve. The PC, Xbox 360 and PlayStation 3 sequel will now be out the week of April 18.

Valve calls this "the shortest delay in Valve's proud tradition of delays" but tries to cheer us up with this: "[I]t represents the approaching convergence of Valve Time and Real Time. Though this convergence spells doom for humanity, it will not affect the new Portal 2 release date."

[UPDATE: This story originally said the game would be out on the 18th. I apologize for the error.]