Does APNs work with apps distributed inhouse using the Enterprise Distribution program and distributed interanlly from a website?
I found this from the link below saying no, but I see vague comments in forums that it is possible:
Apple Push Notification service (APNs) is available only to apps distributed through the iOS App Store or Mac App Store. Your app must be provisioned and code signed to use app services. If you are a company, most of these configuration steps can be performed only by a team agent or admin.