Yes, I'm setting high expectations on this. I believe what I experienced this afternoon is related to an issue I addressed here:
https://community.logos.com/forums/t/88716.aspx
On Mon Oct 13, around 2:00 PM eastern U.S. time, there was some kind of problem in the Logos "cloud" infrastructure. Pages on www.logos.com were inaccessible - no response at all, just a browser timeout. I couldn't initiate normal web authentication to Logos because that happens on a www.logos.com page.
What made me look into things via the web was the fact that my Logos Bible app (latest release, iPad 4 wifi, iOS 8.0.2) was showing me the login splash screen when I launched it. It never does that. If I'm offline it doesn't do that (at least last time that ever happened - don't know how long ago that might have been). So I hit the "Skip This" link in the lower right - I suspect that was a mistake.
I couldn't get to normal "stuff" - my library did not look normal. I killed the app and launched it again, thinking that perhaps the iOS didn't notify the app early enough that it was on wifi (I had switched access points). Same thing - login splash screen. This time I entered my credentials, only to be met with an error along the lines of "invalid error code" - some strange message that did not indicate an incorrect id or password. I tried once more, just in case - same thing.
That's when I went to the web and found that something within the Logos cloud infrastructure was down and was likely the culprit for my Bible app problems. After I logged in on the web, I went back to the Bible app.
I was quite confident of what would happen. It allowed me to log in, but acted like this was a brand new installation with a first time sign-in. Even now, 15 minutes later, I'm at 97% of the "Please wait a few moments" screen. Basically I've been unable to use the app for 30+ minutes even though my iPad is fine, iOS is fine, the app is fine, and my library is (now, "was") fine. And, as was advised in the previously referenced thread, I now have to "rebuild index" on my library, which will take at least another 10-15 minutes. That's really unacceptable.
My expectations, which I believe are reasonable:
- Disambiguate the "unsuccessful login" scenario from the "cloud is down" scenario.
- If it's the "cloud is down" scenario, behave as though the device is offline. It can't be exactly like that, however. The app would get a notification when general connectivity is established. But the app would need to asynchronously check to see if the Logos cloud has started functioning again.
- If it's an unsuccessful login, prompt for corrected credentials.
- Upon successful login, if the account is the same as the one that already existed, don't do anything special. Just go to the screen where the app would otherwise have gone.
- If there was no previous account on the device or if the newly logged in account is different, then proceed to initialize the account, library, etc.
One more thing. I've said before that I'm willing to pay for a "premium", or even "more attention given to it", app. I depend on this app for my seminary work and for my role as pastor, and it's my first choice for personal study and edification. I don't think I'm alone.
Thanks for letting me be direct in expressing my experience and expectations. 
Donnie