Valve has been having a lot of fun with the press in recent weeks. Last week, they sent out a cryptic message stating that their long-planned Portal 2 E3 event had been cancelled and replaced by a surprise. Valve has now confirmed that Portal 2 will slip from its planned November 2010 release date, to sometime in 2011.
In what is becoming traditional fashion, Valve put out another quirky press release announcing this unwelcome news. There are a few details to be gleaned from this release, including confirmation that the promised “surprise” will be Portal 2 related. The final paragraph clears up any confusion by referring to it as the “previously announced E3 ***PORTAL-2-THEMED-FOR-GOD'S SAKE*** surprise.”
Outside of the cheeky citing of “public safety concerns,” no other reasons were given for the game's delay. Valve does make an attempt to allay concern by reminding everyone that the original Portal "earned over 30 Game of the Year awards despite missing its original ship date."
The full release can be found at Giant Bomb and is worth reading for comedic value alone.