Let's just say that if it turns out to actually contain a binary encoded message, the formation's authencity would be more certain. As it stands at the moment however, the pattern might just be gibberish intended to look like a binary message...
Some crop circle researchers have studied the image and have decoded what they claim to be a binary message:

Doing this for the whole 'disc' we get the message:
"Beware the bearers of FALSE gifts & their BROKEN PROMISES. Much PAIN but still time. (Damaged Word). There is GOOD out there.We OPpose DECEPTION. Conduit CLOSING (BELL SOUND)".
Some commentary on USENET suggests that the message may relate to the rise of Islam and the Jihad against the West
Futher analysis can be viewed at: