With two titles "completed" in Valve's play-for-an-early-release stunt with Portal 2, GLaDOS says we've only shaved about 90 minutes off the scheduled release of 7 a.m. Tuesday. Several sites calculate that the effort is much further ahead than that. Like, between 16 and 18 hours as of writing. » 4/16/11 4:00pm 4/16/11 4:00pm