Send beautiful letterpress cards to your friends and family with your iPhone or iPod touch via Apple’s Cards, the surprise app unveiled last week during the iPhone 4S keynote. Cards, now available on the iTunes App Store, features a series of thankful, seasonal, celebrational, and  travel templates which you can browse via a carousel. New cards slide into view as you navigate the app with your finger, with incomplete cards being saved to a drafts area which can be accessed through the navigation bar.

Presented cards are customizable, enabling users to change the title information, the inside of the card, and the envelope before sending their card for $2.99 within the United States, and $4.99 internationally. Unique edit views make the customization process feel on par with the editing techniques seen in iWork. Pictures can be taken on the fly or chosen from your photo library, then cropped and resized on the card face. Text can be completely rewritten for a personal touch on the inside of the card you’ve chosen, allowing you to personalize messages for a truley unique card.

Cards is a free download in the iTunes App Store.