Ubuntu 8.04 (Hardy Heron) Beta works great on my laptop of choice, the Dell XPS M1330 but one of the issues I came across was with the finger print reader. This does work but not out of the box.
One thing that caught me out was that Hardy comes with partial support via thinkfinger-tools which in the end caused me a problem. After reading that thinkfinger-tools was in the repo’s I installed it using apt-get. Then I followed the excellent tutorial over on the Ubuntu wiki at https://wiki.ubuntu.com/ThinkFinger . This looked promising as everywhere a password was required it would also ask for a finger swipe instead. The only problem was that it wouldn’t accept the finger swipe no matter what I did.
To cut a long story short, the source install conflicted with the version apt-get installed. A quick apt-get remove thinkfinger-tools and an installation from source again as per the wiki page worked a treat. I now have a working finger print reader.