Hopefully this means that a new PDF is being released soon. The book is great, but I've been disappointed with Manning's early access program. The last update was released in August 2010. Then we jump to March 2011, where we still don't have an update from the publisher.
Apparently I've been spoiled by the frequency of updates from PragProg.
Agreed. I bought the MEAP for "Joy of Clojure" in August 2010, and the MEAP for "Taming Text" a couple of months later (November) -- no updates for either book since the initial purchase. I was glad to get the early content, but I've lowered my expectations for future dealings with Manning.
Apparently I've been spoiled by the frequency of updates from PragProg.