Irrational Games is teasing us.  The good people who brought us BioShock have put up their cryptic website, "WhatisIcarus.com".  It consists of a black screen, a date and time ("August the 12th, At 1:45 PM, Eastern Daylight Time"), and a very slowly moving dot that seems to uncover small pieces of a bigger, hidden picture.  From what I can gather, the hidden image is a big grey circle.  I'm guessing there's more to it than that, though, so we'll just have to wait until the aforementioned date and time to actually find out what the hell it is.

Seriously, no clue on this one.  Could be something to do with Greek mythology, or the Icarus name could be a total red herring, or it could be some reference to modern flight.  We have no idea, but Irrational's track record has certainly earned them the benefit of the doubt.  So, any guesses; What is Icarus?