Last time I did this comparison about 6 months ago, Bebook emerged as the winner for me. It works in a very simple fashion, just like an MP3 player. Just put .p

Last time I did this comparison about 6 months ago, Bebook emerged as the winner for me. It works in a very simple fashion, just like an MP3 player. Just put .pdf / .txt / .djvu files on a memory card, put card on the device and they appear there. For me the Kindle wasn't even an option though, as it isn't supported in my country. I find it pretty comfortable to read, although contrast isn't as good as a real book, but less straining than a monitor. It weighs less than many books too. It isn't practical to read anything with illustrations or fancy layouts with this device, I wouldn't try to read something like "tcp/ip illustrated" on this. Also the page turning delays make it difficult to browse quickly, so mostly it is suitable for fiction, not as reference or study. Battery life is amazing.