We have just updated the popular FREE Delta theme to make it easier to use and included support for some of the new WordPress features, such as the Menu Builder.
This is version 2.0 of the theme and will only run on WordPress 3 upwards. The theme now includes support for the following features:
- Support for new menu builder.
- Custom header support via dashboard.
- Full widget support (left sidebar, right sidebar2 and welcome text area)
- Support for threaded comments.
You can download the theme from here.