It's a little past January, but it's not like you've had too much trouble burning through your credit limit these past few months anyway, right? VeriFone -- that company responsible for the other iPhone credit card accessory -- has just announced that its slip-up case is now available in Apple retail stores. For those unaware, this card reader works on all iPhone 3G and 3GS handsets, and there's a built-in stylus for capturing signatures from those arguably shady street-corner transactions that you'll be engaging in. Best of all, the device and app are totally free assuming you agree to a 2-year service contract and a $49 "activation fee," but we'd caution you to read through the fine print under "merchant fees" before tossing away too much of that profit margin.