Made entirely of the highest grade, genuine cow, calf and lamb leather, they’re available in a wide range of colors and finishes, all roughly one millimeter thick (allowing them to work with bumpers and other cases). The removable leather covers apply with a thin layer of adhesive that apparently leaves no residue if you decide to quit it. Protect your phone (well, from scratches) or just use it for a more stealth look. » Valentine: Premium Leather iPhone 4 Backs

Celebrate Valentine’s Day with a fun valentine message and a photo in a heart-shaped frame! Any number of valentines can be created, using existing photos or take ones with the iPhone’s camera. Customize the message text. Show the valentines on your iPhone or iPod touch, or save to the Photos app.
» App Store – Valentines 1.0