A-T-O-M Joomla 2.5 + 3.0 theme is a clean, sophisticated, lightweight and adaptable business or portfolio Joomla 2.5 + 3.0 fully responsive template. Build with LESS CSS compilation and CSS3 based on gantry framework 4. It has a limitless color variations, k2 styling, bootstrap integration and many more. The theme panel allows to have a limitless control over the theme.
Demo: http://themeforest.net/item/atom-responsive-multipurpose-joomla-theme/3908568