this calibre software came up a couple of days ago in one of the freeware forums I frequent everyday, and I googled a bit, and this came up, maybe its of use for you :)

calibre is a one stop solution to all your e-book needs. It is free, open source and cross-platform in design and works well on Linux, OS X and Windows. calibre is meant to be a complete e-library solution and thus includes library management, format conversion, news feeds to ebook conversion, as well as e-book reader sync features and an integrated e-book viewer.
http://calibre.kovidgoyal.net/


101: iPhone+Stanza+Calibre (the almost-perfect solution)
http://www.mobileread.com/forums/showthread.php?t=42023
http://www.teleread.org/2009/03/16/101-iphonestanzacalibre-the-almost-perfect-solution/


Using Calibre to Interface with IPhone, Sony Reader or Cybook, Part 2 of 2 |
http://dearauthor.com/wordpress/2009/01/18/using-calibre-to-interface-with-iphone-sony-reader-or-cybook-part-2-of-2/