Came across this article on Reader Quirks when trying to determine why my cross-reference links were not working. Didn’t have an answer for that problem but does collate a few peculiarities for the common software-based reader applications:

• Adobe Digital Editions
• iBooks
• Stanza, and
• Calibre.

May help with your cross-platform testing.

Noticed it hasn’t been updated for 7 months, and has no space for comments. Hence might be some better collection out there somewhere?