Readdle.com has released the first iteration of its Readdle service for reading books and documents on Apple's iPhone. Readdle allows iPhone users to view electronic books (eBooks), text files, and business documents on-the-go and features a native iPhone interface to navigate as well as read titles when browsing Readdle.com. The site's Web interface is accessible from any Mac or PC, allowing users to upload books as well as documents to view from a desktop computer on their Readdle account. The service supports PDF, text, Microsoft Word, and Microsoft Excel documents and is available for free with 50MB of complementary book storage per account.