I think that is just their App Engine for Business costs: (for others' reference: http://code.google.com/appengine/business/ http://code.google.com/appengine/bu

I think that is just their App Engine for Business costs: (for others' reference: http://code.google.com/appengine/business/ http://code.google.com/appengine/business/) You may want the extra services that this gives, but it is not the standard App Engine offering. If you are not using App Engine for Business, the costs are for CPU and bandwidth, etc., and not for users, and so should be significantly less than that. edit: The standard pricing structure is at http://code.google.com/appengine/docs/billing.html http://code.google.com/appengine/docs/billing.html and there is a free quota as well which is pretty generous.