During today’s iPhone event Apple debuted Cards, a new iOS application designed to allow users to create professional quality greeting cards on their iPhone to be printed and mailed out directly by Apple. Users will be able to choose between 21 different designs and add their own text and photos and Apple will print out a 4” x 6” letterpress card and mail it to the recipient. Cards mailed to U.S. recipients will be tracked via the U.S. Postal Service barcode and the sender will be notified of delivery status via Push Notification. Cards will be available from the App Store on October 12th. The app will be a free download with in-app purchases used to buy individual cards: $3 for U.S. destinations or $5 for international destinations, includes the card, the envelope and the mailing costs.