I am an avid reader. I moved from paper to a Palm E four years ago, then switched to a Palm T|X two years ago - and finally moved to the iPod Touch when eReader was released for it.
I read mostly science fiction and crime/thrillers, in addition to popular science books which I also review on occasion for national radio here in Norway where I live.
Reading on Palms and now the iPod has been a revealing experience for me. I never thought I could get used to not reading on paper. But the first time I tried, it stuck instantly. I haven't looked back.