Amazon.com has announced the launch of the Amazon MP3 store, which is optimized specifically for iPhone and iPod touch. iOS users can discover and buy digital music from Amazon’s 22-million song catalog using the Safari browser.

Customers also have access to favorite Amazon features like personalized recommendations, best-seller lists and Amazon customer ratings. Music purchases are automatically saved to customers’ Cloud Player libraries and can be downloaded or played instantly from any iPhone, iPod touch, iPad, Kindle Fire, Android phone or tablet, Roku, Sonos home entertainment system, or any web browser, giving customers the freedom to enjoy more music, from more devices than any other major cloud music service.

Customers can begin shopping the Amazon MP3 store from their iPhone and iPod touch web browsers today at http://www.amazon.com/mp3.