Fingerprint scanners are coming to laptops. Again. Thanks, in part, to smartphones making them, if not quite cool, then useful. Synaptics, the laptop trackpad maker, already told us all about SecurePad, a touchpad with a fingerprint sensor built into the upper-left corner, and now look! Here it is! While the sensor built into the prototype laptop had a raised outline, Synaptics also told us that, heck, it can make it look like anything a hypothetical PC maker wants -- even if that means making it indistinguishable from the "main" trackpad. Since last month, laptop manufacturers have been able to start embedding the tech into their PCs, although which company will strike first with the sensor remains a mystery.