Fido - The safest and most minimalistic smart lock
USB Raptor - Lock and unlock your computer using USB flash drives as keys.
Otto - Otto is a full-service advertising, web development, and public relations agency.
Near Lock - A new way to lock your Mac. Just walk away.
Lockitron Bolt - Unlock your door with your phone for only $99
Rohos Logon Key - PC: Two-factor authentication solution that converts any USB drive or Bluetooth smart device into a...