Yeah, but I don't think I'd be terribly excited about reading a book I just dropped in the toilet while doing my business, lol

Back on topic, though, the other thing I'd be concerned about in the context of beach- or pool-side reading of an iPad is that I'd be supremely paranoid about it being stolen if I were to get up to go to the bathroom, for a dip in the water, etc. I suppose it wouldn't matter as much if you're not swimming or if one of your party was always by your stuff, but a consideration nonetheless.