During the autumn, in Yubico, we have been working on a PAM module for the Yubikey. It allows you to use the Yubikey to login to your machine, to unlock the screensaver, and so on. I decided to let Google Code host this project, which is the first time I’ve used them. It will be interesting to see how working with their site is going to turn out.
You can buy Yubikeys on our web shop. If you have an interesting idea about what can be done with the key, let me know and I may be able to arrange a good deal for you.