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.
We've recently released the Beta theme, a quick subtheme experiment with Omega that allowed us to investigate some of the changes to the color module in Drupal 7, and several CSS3 enhancements.
Omega is an evolved implementation of the 960.gs in Drupal, giving you full control over your layout, advanced region placement and controls, and contextual layouts provided by the Delta and Context modules.