I just ran todays (14/02/03) build and noticed (what appears to me) a new tag '<pre><?php wp_list_cats(); ?></pre>
What does this omprove on over , say,
<pre><?php list_cats(0, 'All', 'name'); ?></pre>
Is it just that you now have a list all cats link?
Did you ever consider have a category header unlinked with the subs linked?
Great work none the less :)