I have a non-jailbreaked iPod touch and wanted to read eBooks thereon. There isn't much of a solution for this yet, so I decided to convert Benjamin Franklin's Autobiography into a PDF format that is optimized for viewing on an iPhone or touch. I created one PDF that contains the entire book as well as separate chapter/section PDFs for easier navigation. The PDFs can be viewed directly in Mobile Safari or can be downloaded to a PC and emailed to your device for offline viewing. The link below contains a web page where the PDFs are located. (The web page has also been optimized for viewing on an iPhone or touch, so if you view it in a PC browser it will look strange, that is, very large text.)
http://w5jck.com/ipod_touch/ben-fran...biography.html