Drupal 6 RC1 was released on 21 December.  The last Beta (4) was fairly stable so maybe it won't be too long until a Drupal 6 stable release hits the streets.  I think there's a good chance that the Drupal 6 and Joomla! 1.5 stable releases might occur within weeks (or maybe days) of each other.

I've been fooling with both Joomla! 1.5 and Drupal 6 for quite a while now.  Both are significant improvements over their predecessors.  For example, Joomla! 1.5 has made significant improvements in their SEF implementation and intoduced template overrides; Drupal has made significant improvements in caching and has also simplified theming.  Buildng Drupal themes is still not as straight forward as templating in Joomla!, but this lastest release takes a big step in the right direction.

Congrats to both the Drupal and Joomla! core teams for making my two favorite CMS's even better!