Been reading E-books since the Palm Life drive (it died R.I.P.)
I have an e-reader with a few books on my android phone, but use my Ipod touch for main reader to save phone battery. I'm afraid I use peer/peer for downloads.
For it I like Stanza as the reader app. as it does any format. Honestly, I have been using audio books mainly now as I can multi-task doing it that way.