Look's like Cowboom is having another flash sale, this time for mobile phones. You can get an iPhone 4 for $220 without a contract as well as Android and BlackBerry (Curve 9360 for $120) devices that are popping up. Although it seems like the majority are iPhone 4's (not 4s'). With the "pay as you go" companies now supporting iPhone's this may be worth it for some people.
For those of you that are not familiar with Cowboom it is a division of Best Buy that sells their returns/open box items. So all the items are listed in "used" condition and are given a rating between 1-6. If you see a 6 the item is near perfect and most of the 5's are in decent shape too. Cowboom gets fantastic reviews and grade their products pretty tight.