I certainly didn't get my iPad for reading, but I've wound up reading a bunch of books on them, both through the kindle app and the iBooks one. While the experience isn't as good as a hardback, it's nowhere near bad enough to keep me from a good book. And it's far lighter than Stephenson's latest.
Though, when opening one of the hardbacks I got this past christmas, I was very impressed with the resolution of the font and the crispness and uncluttered look of the pages. No fingerprints, no icons. Just well formatted text.