Entering a 16-digit credit card number may be a thing of the past with a new initiative from MasterCard and Intel, which allows users to checkout online by tapping a PayPass-enabled card, tag or smartphone to their Ultrabook. Calling the checkout "safer" and "simpler," Intel is bringing its Identity Protection Technology to the potluck, giving shoppers two-factor authentication and chip-based display protection when forking over that hard earned cash. H