You can pick them up at the CMON Booth.
From the announcement:
As a big thank you to the famed Crystal Brush painting competition (our wonderful Hobby Section partner!), we are loading a few boxes of Issue 7 onto the trucks headed to Chicago for Adepticon and the Crystal Brush 2013 Finals. They will be physically available to buy for the first time at the Cool Mini or Not sales booth at Adepticon!
Swing by the booth and be one of the first to get your hands on this new evolution in our magazine!