I have both a Kindle and an iPad 2 and if it's novels you want to read then the kindle wins hands down. It's smaller, lighter, less delicate, the battery lasts for a month with wireless off, and the free worldwide 3G is handy if you're stuck in a foreign location and want to check our email. However if you want to be reading programming books and the like then the iPad is a better option. Neither mobi files or ePub files can handle complex layouts so for these kinds of books PDFs are still the best. Consequently getting a 10" tablet is your best bet. I guess alternatively you could get the kindle DX but that's almost as expensive as an iPad.