I have a library of epub books on my MBA but I can't find a good ebook reader... Options: 1. Amazon Kindle for mac: best UI. But I have to convert all books to mobi. 2. Stanza/Tofu: read epub files. But slow and ugly UI. 3. Adobe Digital Edition: requires Adobe Flash, which i don't have on my MBA and I don't intend to install. 4. LovinglyReader: from screen shots, it seems like a good reader. But it requires Adobe AIR. Is AIR as evil as Flash that reduces battery life? 5. Sony Reader's Library: really slow. Can't even zoom. I think I am really picky. If I can't a good one, I think I'll just go with Kindle... Anyone with good suggestions?