Scrivener for iOS is now available for sale on the App Store. At the time of writing, it is not yet showing up in searches on the App Store, as it can take several hours for Apple's records to update. However, you can find it by following this link:
If you tap on the above link on your iOS device, it will take you to Scrivener in the App Store.
Thank you everyone once again for all the enthusiasm that has kept us buoyed in getting to this point. Happy mobile writing!