You might want to star this bug which I've created about the issue - I've got a similarly alarming exceeded Task storage quota:
http://code.google.com/p/googleappengine/issues/detail?id=3132 -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
