AT&T now offering online iPhone pre-screening tool

Similar to the pre-purchase tool launched by Apple in September, AT&T is now offering an online iPhone pre-screening tool that allows customers to get pre-qualified for the iPhone 3G before they head to the store. The tool allows new customers to perform a credit check and determine number porting eligibility, while existing customers can check upgrade and/or add a line eligibility. The new AT&T online iPhone pre-purchase tool can be accessed by visiting att.com/iphone.