Destiny viral marketing campaign/teaser sites begin

Though I agree with a lot of the people saying "just reveal it already", I do like following the insane collective thinking spree the web goes on with these. It's interesting to follow.
Pretty sure all of this will end with the big giant egg looking spaceship actually arriving. The one in the concept art.

We are probably 'tracking' it with this ARG.
Isnt this game published by Activision and is out for all platforms?
Microsoft Timed Exclusive

LA Times Article about Bungie/Activision contract

The first Destiny game will initially only be available on Microsoft's Xbox 360 consoles, as well as its potential successor, which the contract refers to as the "Xbox 720." Later games would be made for Xbox consoles as well as Sony Corp.'s expected successor to the PlayStation 3, and on personal computers.