CD Freaks, the self-ascribed, "World's Largest CD/DVD Community" recently did a poll which format would be the follow-up to DVD.  The results of over 500 respondents polled can be found here.

While this doesn't mean anything from a scientific perspective, it is interesting to see that HD-DVD and Blu-Ray are effectively neck and neck with this audience, with a good-sized # of holdouts.

In other news, reportedly Blu-Ray drives for PCs will be ready in March. The drives can read CDs, DVDs but will not be able to burn until the second generation hits the market this summer.