How Does E-Reading Affect the Reader?

I continue to ponder the question of whether e-reading causes me to react to books differently than I would if I’d read them in a traditional paper format. Today I finished my first Kindle download. I don’t have a Kindle, but I do have an iPod Touch, and there’s an app now that allows you to download Kindle purchases to your iPhone or Touch. I’ve been wanting to try it, curious about how the Kindle format would compare to e-readers like Stanza or Classics. Jen Robinson’s review of The Chosen One