Originally Posted by Micah
There's all kinds of alternatives to iTunes side loading. Dropbox, email, web links, etc. Though I agree, OPDS catalog support would be awesome. But that would likely run afoul of Apple's App Store policies for ebook apps, as OPDS feeds could include "Buy" links, and it would be really hard for us to "filter" those out from other types of web links.
There is already several apps in the Appstore that support OPDS catalogs (Megareader, Shubook, Stanza, etc.) This argument doesn't hold water