Its extremely frustrating, I do understand. I have been using Kitabu and the free Bookreader (which to me is a better app, the paid version probably better still)... perhaps they would consider writing an iOS app as well...
http://macbookreader.com/wp/
Might be worth asking.
[edit] I'd say the ereader referred to is "Beagle", their e-ink offering (which takes AA batteries! Interesting)
http://au.txtr.com/beagle/