I have a 1st gen ipad, so it has no camera. I don't feel the need to get one with a camera, I wouldn't use it anyway. The lack of flash has caught me once or twice, but really I didn't *have* to use it right at that time anyway, and used my pc. The images from my scientific academic texts are stunning. The screen display leaves nothing lacking and I can zoom in to the minutest detail. I love my ipad, even though I'm not fond of apple, and can honestly recommend one. I transfer titles from calibre through itunes, and have had no complaints about that process either.
If you want to make notes in your titles, there are some great pdf annotating apps that are perfect for that function.
I can't answer for the Samsung, but the calibre would work well for what you want.
Hope that helps a bit.
Cam
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