Linux and Biometrics?

OctaneZ asks: "While this topic has been brought up Twice Before, once in May 1999 and again in October 2000, yet another year has gone by with very little discusion, at least that I have seen in the field of UNIX and biometric scurity. There are now projects like the BioAPI Consortium. But very little has actually come of it. Is anyone out there using biometrics for UNIX security? Or security period? Any advice on implementations? Anyone with experience, give us the heads up: What works and what doesn't?"