I'm the author of appengine-magic. Rather flattered to see this on the front page of HN. If you have any questions about appengine-magic, or running Clojure on App Engine, I'll answer as best I can.
One thing to keep in mind: the latest version of the App Engine SDK is fully supported in the development (version 0.4.0) branch of appengine-magic (https://github.com/gcv/appengine-magic/tree/v0.4.0). I'm not quite ready to finalize and release this branch, but it's stable enough for in-development applications.
One thing to keep in mind: the latest version of the App Engine SDK is fully supported in the development (version 0.4.0) branch of appengine-magic (https://github.com/gcv/appengine-magic/tree/v0.4.0). I'm not quite ready to finalize and release this branch, but it's stable enough for in-development applications.