For any that use library eBooks from Overdrive, they have released an app, Overdrive Media Console, for droid that now supports eBooks. You have to put your Adobe ID into the settings, but after that you can download directly from/into the phone, no USB cables required. I'm a happy camper about that!
WMA audio files still require the computer version of Media Console, however.
It's a clunky reader, but better than all the fussing required for transfer that I had to do before. Yay.