I see. You can open just about anything, something like 18 formats, it's on their website. I prefer epub, but it can open Kindle's mobi etc. That's why I bought it, I got a large library of pdbs.

I have Touch HD 3, I had some Touch Lux before. I had it for a while, don't know their newest models. But yes, not only would I buy it again, I already did, just bought a newer version. Unless I was looking for something for hand note taking, I wouldn't change. What I dislike is that when you break the screen, it's expensive to replace, so I just bought a new one instead. Nothing you wouldn't be used to from phones. And I'd very much like to have an option to disable the touch layer of the screen by long press of one of the physical buttons, but it's a minor issue. What I like is the tunable intensity and colour temperature of the light and I'm quite happy with everything else. You can upload books by sending them as an attachment to a special email. If you don't like the interface for reading the books, you can even quite easily replace it with Cool reader. I tried it before, but I didn't do it in the newest one. You can use dictionaries, some are preinstalled, or use notes and highlights, but I don't have experience with that.