HandHeldItems offers the EagleC Holster Case with Viewing Stand for Apple iPhone 4 / 4S in six colors (Black pictured) bundled with a $1 HHI Credit for $9.99. Coupon code "iphone4scholster" knocks it to $6.99. With free shipping (and assuming you'll use the credit), that's the lowest total price we could find this style of iPhone 4 / 4S case by $5. This holster case snaps on the back of your iPhone, and features a swivel clip that converts into a kickstand for landscape viewing. It's designed for the AT&T and Verizon Wireless iPhone 4 / 4S.