It has happened quite a bit lately that when pushing tags to Drupal (and GitHub) that I will incorrectly name a tag, and not realize it until after I've pushed using git push drupal --tags that it was wrong.
A lot has been in the works recently on the upcoming Omega 3.x version. As always, Omega is always on the lookout for the best methods, the most powerful features, all combined with a flexible base theme.
As I recently posted on the 7.x-2.x branch of the Omega theme, there have been a lot of changes recently to the core of Omega, and how it interacts with the Drupal theme layer.