The fingerprint biometric device for $49 was inevitable, I’m just surprised it arrived this soon (should we thank the demand generated by the Dept. of Homeland Security for the accelated development?). I predict within two years someone will build this into a laptop, sitting beside the trackpad.
Update: Josh points out that fingerprint biometrics are already included in the $650 HP iPAQ Pocket PC h5550, probably aimed at corporate customers. At this price point, inclusion on a consumer laptop will be probably happen sooner than two years.