Envision, a company that develops iPhone applications has built one around the book America At Home. The application has the same name as the book and contains essays and photos. The application has the same chapter layout as the book as well. The America At Home application costs $0.99 [iTunes link], but you also get 25% off the book by buying the application.
America At Home is a book series with very intersting photographs from some of the top photographers around the world. The book also has an introduction from Simpsons creator Matt Groening. Essays in the book are written by famous authors such as David Pogue, Amy Tan, Richard Rodriguez, and Terry Teachout.