We consider using consumable products in our next app to allow users to set packages of content free until there is no more content.
We never used consumable products before and we would like you to create a example app that demonstrates how this works internally.
It would be sufficient if the app works against apples sandbox.
The aspect of restoring past purchases in case of a reinstall is of special interest to us as the apple guide states that you will have to handle the restore on your own. Unlike how it is done with normal products.
An extra problem, that we would like to see solved is how to change the products and still allow the users to restore the old purchases when they reinstall.
It will be part of the project to document how the app is working (including any severside code that might be needed).
In the near future there will be a similar project for a autorenewables example app. So if you have knowledge of those as well it would be nice to let us know and we will get back to you once the autorenewable project comes up.