If you want to try out some of the Trusted Computing features but don’t want to add them to your running system, check out this version of Knoppix that Japan’s National Institute of Advanced Industrial Science and Technology (AIST) produced with IBM Tokyo Research Lab. It includes Grub-IMA, Linux-IMA, TrouSerS, tpm-tools and TPM Manager(by rub.de). More features are still being developed. Thanks to Seiji Munetoh for pointing this out to me. I downloaded it and tried it on my T42p and it is very clean and slick.
It’s available from http://unit.aist.go.jp/itri/knoppix/index-en.html