The Audiobooks app has rocketed to the coveted number one spot on Apple's App Store free applications for the Books category, bringing a catalog of 1,800 free audiobooks to iPhone and iPod Touch users--unseating Amazon.com, Inc.'s Kindle for iPhone reader in the top spot.

Created by Cross Forward Consulting, the application features catalog browsing, book-marking functions, and is supported by ad space in the app. It was built using recordings from the LibriVox Project--a collection of volunteer-read audio books from the public domain.

Here's more from the release: "Starting with the immense library of the Librivox Project and growing every day, this application gives you free access to over 9,800 hours worth of audiobooks."