hi rsullivan, and welcome to the forum ! that must have been an exciting moment to see your husband's book come up here in a google search. do you feel vicariously famous ?
if you like reading on your iphone, there are a lot of books available to you ! i recommend you take a look at the stanza iphone app, and from there go to feedbooks.com ; thousands of great books available for free ! (public domain or creative commons books).
and of course, we've got thousands of books available here as well ; just click on the "ebooks" link in the blue nav bar at the top of the page. if you're using stanza, you can read any of the epub format books on your iphone.
enjoy the forum ! and don't hesitate to ask questions, people are very friendly and helpful here.