Today (the last day of 2010), Drupal 7.0 RC 4 released. This release is the final RC version of Drupal 7.0, and the release date of Drupal 7.0 is January 5th.
I already check the compatibility of Danland D7 version and Simpler D7 version with this RC version, and both themes is working like it should be.
Nothing change with Drupal 7 theme core, so current version of Danland and Simpler is supported. When Drupal 7 entering the final release, I will also releasing the final Drupal 7 version of Danland and Simpler.
Download Drupal 7.0 RC 4 here.