Any developer who was burned by App Engine pricing in the past is likely to take the lure of a "70% off" discount with a grain of salt because of the much higher cost of incorrectly relying on Google's pricing pledges.
In case anyone forgets, the pricing changes on Google App Engine caused many developers to abandon apps they had developed on the platform because of hundreds of percent increases in pricing:
In case anyone forgets, the pricing changes on Google App Engine caused many developers to abandon apps they had developed on the platform because of hundreds of percent increases in pricing:
https://groups.google.com/forum/#!topic/google-appengine/rSh...