Joystiq

All fifty of Portal 2's Achievements have been uncovered by Xbox360Achievements.org. In typical Valve fashion, there are some comedic gems in the list, like "The Part Where He Kills You," and some in-jokes, including "Narbacular Drop" and, yes, "Still Alive." But one Achievement is generating some real buzz: "Ship Overboard" has players discovering "the missing experiment."

Some have suggested that this Achievement is a possible reference to the Borealis, an Aperture Science vessel first mentioned in Half-Life 2: Episode Two. In the brief scene (embedded after the break), Isaac Kleiner notes that the Borealis contains some kind of technology that can help humanity. Could Portal 2 tie into the final Half-Life 2 episode? Or are overeager fans simply grasping at nothing? April 20 can't come soon enough.

http://www.joystiq.com/2011/02/28/portal-2-achievement-invites-half-life-2-ep-3-conspiracy-theory/

no never!! 2011 is already so packed!

The Borealis has a huge portal gun that can send portals anywhere, the moon, IO, even other solar systems. Think of the possibilities! My theory, c. 2010 raygun 

if I was a fan of half life I would not want a half life episdoe 3, why? because for what, so Valve can low ball it's fanbase yet again for what 4 fucking years waiting for a another half a game. If I was a Half life fan I would demand nothing less of a full fledged half life game, anything less would be straight butt rape with a splintered broomstick covered in salt and rubbing alcohol. 

That's pretty fuckin gnarly dude. But yes, we do deserve a full-fledged half-life game. But in this particular case, even God doesn't know what valve is up to.

Stop teaseing us Valve just reavel it already!