It appears that the chart is being misinterpreted. The cost per hour is less under the new pricing and I believe the total hours is calculated for the month.
I wish that were true. Could there be some huge fuckup on the part of the kid programming the chart? I'm just going to keep clicking my heels and pretend that Google doesn't really want to take my monthly cost and charge me that per day.
That's the point. Appengine is changing their pricing from CPU hours to Instance hours, so an app that previously had 3-4 hours a day is now going to have 48-72.
Damn it. It appears the only solution is limiting the amount of instances in the application settings. I manage a free sync service with approximately 20,000 active users on App Engine. I just checked the billing history for our application and saw similar results, the cost will increase 10 fold.