Thursby's ADmitMac for PIV integrates US Government FIPS 201 Personal Identity Verification (PIV) with Macs. ADPIV, as the product is known, allows single sign-on with a PIV card. It verifies the PIV card against a centralized authority, obtains Kerberos tickets using PIV certificates and then makes those tickets available to Kerberized applications, and securely locks the Mac upon removal of the PIV card.
ADPIV also allows password-free access to Exchange servers by providing authentication to those servers. ADPIV is currently available at the introductory price of US$149, with discounts available for larger quantities.