Originally Posted by CWatkinsNash
My tablet is running ICS, 4.0.3 stock with stock kernel.
Interesting findings on the mimetypes. I'll wait for the update and see if that makes any difference. In the meantime I might play around with the mimetypes some more. Especially since Astro lets me reset them with one button.
CC 2.3 uses a different mechanism for launching readers, where it (CC) manages selecting the default app itself. It also detects the presence of Kindle for Android and gives it as a reader option if it makes sense: an amazon format stored in the /kindle folder.
Germane to this discussion, CC now forces mimetypes to lowercase before looking up apps that can handle it. I hope that solves the problem you are having.