Well, believe it or not, but Marvin 2.5.4 -- the iPad-only "old" edition we've been waiting for -- just popped up in the
regular Updates section of the App Store on my iPad 1.
The download and installation went smoothly, at long last. So, it took many weeks, but finally it's there. You might take a look there, crashnburn.
I'd be happy to send you my IPA file, but like At_Libitum mentioned, it would only work for you if you entered my Apple ID data on your device. It's a silly system devised by Apple, but then, iOS is a silly operating system (ugly, too, since iOS 7), so we just need to live with it.
(Or switch to Android, which I'm likely to do pronto, as soon as apps like Marvin and Mailbox are available there.)
(I was able to install Stanza everywhere as long as it was my own IPA file that I authenticated by inputting my Apple ID data. I think the IPA file would work on any other device, too, as long as
my Apple ID data were input there when the app is run for the first time. In this way, I think it's possible to share apps with family members or close friends who can give you temporary physical access to their device, so that you can type in your Apple ID data. I haven't tried doing that, but apparently that's the silly way it works -- triply silly for free-of-charge apps!)
