Well, looks like we've hit a snag.
Apple reviewed NEO Scavenger's release build, and found a flaw. They're saying it has in-app purchases but lacks a "Restore Purchases" button. The thing is, we have an "IAP Restore" button for this, but it's on the Main Menu->Options sub page. So it's unclear to me if they missed this button, don't like the name, or if the button needs to be moved. I've replied to their message for clarification, but it could be a while before they reply.