No. The format is too awkward for reading: too cumbersome for reading novels, while too small for reading technical literature. Outside of that, I have no love for iOS because it is a closed ecosystem. (I'm not saying that as an Apple Hater because I do like my Mac. It's just that I like programming and tweaking and having a broad range of applications to choose from. iOS doesn't offer that without paying up Apple or jailbreaking it.)