Not really entirely relevant, but two things about cameras.
Real cameras take 120 film, or larger
The best camera in the world is the one you have with you. I use my camera phone occasionally, because I don't *always* have a better camera with me. I normally do, but not always, whereas I pretty much always have my call phone with me.
Personally, I'm an Apple user, and I can't imagine the likely tablet replacing my Sony ereader, nor my laptop. If it is not eye wateringly expensive, and I could get good magazine subscriptions on it, then I could imagine getting one. I would love to have a device that had a bunch of magazine subs on it (I'm thinking photography mags, Wired, the type of thing that current eink devices don't do so well).
Who's hoping that if iTunes does start to include books they are ePub? (Seems reasonably unlikely, but...)