Keyboard Buddy iPhone 4 Case (Polycarbonate Cases and Covers) - The best of both worlds. An ultra slim, slide out, bluetooth, backlit keyboard for the iPhone 4.
Twelve South BookBook for iPhone - iPhone 4 case + wallet - SHOUTS
Design Your Own iPhone 4 & 4S Wallet Case With Picture
Lifeproof iPhone 4 / 4S Case Review - YouTube
Case-Mate Bling Case for iPhone 4S / 4 - Silver
Bunny Ears iPhone 4 Case – Kawaii Case
Why Apple's iPhone 4 bumper case is a rip-off | Ars Technica
Amazon.com: MME Pop It Phone Case for iPhone 4 / 4s Case for Girls Women Cute Cartoon Fun Funny Soft Silicone Cover, Stress Reliever Fidget Bubble Rainbow Unicorn Cases with Pink Pig