http://code.google.com/p/googleappengine/issues/entry?template=Production%20issue
Note that this is not for general bugs -- you should continue using
the "Python defect" or "Java defect" templates for these -- and we
will be closing issues that are not production related with the
expectation that you will report your issue in the discussion groups
or file a new bug. We're piloting this so we can more quickly help
applications that require the App Engine team's direct attention, so
please try to file your issues appropriately.
Have a happy (and safe!) holiday, and we'll check in again soon.