>> BLOWING THE COVER —While we're waiting for the much-anticipated May 2009 model-filled cover of Vogue, here's some more upcoming cover intelligence for you: Speculation was kickstarted earlier this week when Anna Wintour was spotted with Sienna Miller at The Mysteries of Pittsburgh premiere, and now it's confirmed — she shot the July cover last week in Los Angeles, likely to coincide with the release of G.I. Joe later this year.  Wonder if Karolina Kurkova, who also has a role in the movie, will make a cameo in the feature inside? [NY Post]