[jbigelow76]

Presumably Google will require me to send them a report of how much money I'd made?

And then I guess I'd write Google a check for 11% of my earnings…?? Quarterly? Monthly? What happens if I miss a payment?

There has to be some sort of callback into the app on successful payment so that the purchased functionality can be unlocked. Seems like Google would be able to inspect the combination of the app purchase metadata and the callback activity to come up with their vig. Just my guess though.