Amazon has just launched a new service that allows you to text in a product name, UPC code, or ISBN and get a response with whether or not the item is stocked. The query will return two matches at a time and prompt you for the sale. If you decide to make the purchase you will be prompted for confirmation by identifying the e-mail address associated with your amazon account and then phoned to complete the checkout details. As Wired eludes, this brings a whole new tool into the game of comparison shopping... I suppose that is why they support UPC and ISBN codes. Text to 262966 ("Amazon" on the keypad) and give it a try!