> "I read a lot, but have a lot less time for it since I started biking to work instead of taking the train."

If you're not adverse to wearing ear buds while biking (I know some people are, for situational awareness reasons) I recommend using FBReader with the TTS plugin for 'reading' ebooks when you can't have your eyes on the screen. I do this while running. The computer voice is offputing for an hour or two but if you push through that it becomes a great way to get through books using time that would have otherwise been book-free.