I can tell you that initially the AHA was going to use Newsstand for Zymurgy. Apparently Apple did't like their app, so the AHA went back and designed an app specifically as app. When they resubmitted it for approval, Apple didn't realize there was a change in focus and denied it. When the AHA pointed out the change in direction, it set the approval process back. Hopefully it'll show up this week, but it's kinda up to Apple.