Dark Horse have emailed those digital subscribers with the latest news:
We know you are all waiting patiently for information about our new digital store and app. They’re coming soon, we promise! We are working hard, polishing the final product and will have more news to share with you in the near future. In the meantime though, we have something exciting for you.
It sounds like more of an infrastructure issue rather than an Apple issue.
– Posted using BlogPress from my iPhone