The way that the article by WPC's Dan was written, and the preceeding tweets posted by him, make me believe that it was a more than an involuntary or low-level leak. I feel that there are very good connections at play here, or that AT&T had no real intention of keeping is a secret any longer. Just setting THE date would be less climactic. By still keeping it slightly vague, it adds to the buzz, creating more buzz.
Just the fact that this thread exists is a testament to that theory.
At this point .....................The shadow .................... and Joe Bellfiore and he hasnt tweeted in a while (I suppose I dont do much twitter) There was a thing on windoiws phone facebook's page about finding a surprize today!