Yubico , I know them since the last summer, but today I order 5 keys for testing and understanding the different application I could use it for.
try it , I feel like it makes your passwords back to the concept of hard KEY, and the cost is nothing comparing to RSA tokens
I found a lot of clips in youtube talking about the application that applied Yubikey
http://www.youtube.com/results?search_type=&search_query=YubiKey+&aq=f
here is one of them