Secret Mark taken up in BAR

The November/December 2009 issue of Biblical Archaeology Review contains several articles discussing the Secret Gospel of Mark. Helmut Koester weighs in on its authenticity, writing a full length article about why. Charlie Hedrick gives an overview of the discovery. Hershel Shanks writes a piece in which he summarizes the position of a number of scholars who present the case as a forgery. It's a quick overview of where things stand about the question of the authenticity of the Secret Gospel of Mark. Read the articles first, and then weigh in yourself here in the comments. I'd like to see what arguments you think are most convincing, or not.