Browsing around the blog at BibleGateway, I came across this website offering the Bible on iPod for free. It's only the New Testament, but it is in ESV, which has become my favourite version to read for it's poetic style while maintaining good scholarship and translation accuracy. I haven't fully tested it yet, but take a look for yourself. They've successfully tested functionality on the Nano, Video and Mini. Version 1.3 is supposedly coming out soon to include Psalms and Proverbs.