Sephora is offering their iPhone case for the iPhone 4, 3GS, or 3G for FREE for a limited time. Just download the FREE Sephora to Go App (iTunes Link) for the iPhone and iPod touch and show the application to a Sephora employee in-store. You can also make an order online and use the coupon code: MOBILE4 to get a FREE Sephora iPhone 4 case or coupon code: MOBILE3 to get a FREE iPhone 3G / 3GS case. [Store Locator]