Well, I've been reading books on my iPad for a couple of years now, and I can say categorically that... Ooops, hang on...
they're not on the market yet..... Why not wait another week or two, and then some of the members will be able to give you something other than more guesses and/or flame wars...
In the meantime, I'd say that it was definite maybe. Or perhaps a reasonable bet. Or not. But then again...