There are more than ten thousand free e-books listed, mostly out of copyright "classics" in English.
The books are not in the usual PDF or web format, but ".PRC". This requires a free reader, available for smartphones and PDAs: PalmOS Windows Mobile [PocketPC, Smartphone], SymbianOs [Series60, UIQ, Series80, Series 90] and Blackberry; as well as Apple Mac, Linux and Microsoft Widnows laptops and desktop PCs.
From: E-book, Wikipedia, 2006
Most of the books seem to be around 1Mbyte in size. This may be a bit large for downloading direct to a mobile phone using the average account, but you can download to a PC and then transfer the book on a memory card.
Does anyone have any experience of producing any of these books?