Biometric Pen Uses Signatures for Security

A London-based company called Secure Signature Systems has introduced an electronic "Bio-Pen" that can recognize one's signature and use it as a security token. Use the pen to sign your name, and you're granted access to secure resource. The pen can supposedly detect forged signatures to block unauthorized access -- a feature that the manufacturer claims is virtually fool-proof. The Bio-Pen attaches to any PC or laptop via a USB interface.

Source: Emerging Technologies