Displays system messages in fully themeable colored horizontal bars on top of the page, similar to Stack Overflow / Stack Exchange network notifications.
The Adaptive image module provides device-appropriate versions of images from your fields.You can activate adaptive images by adding an adaptive effect to any of your image styles.
Arctica takes the next step in facilitating responsive web design in Drupal. It works in the background, providing Drupal with a layout system via the Skinr module and its own CSS management system. But unlike other base themes it doesn’t stop there; The Arctica Configurator (aka theme settings form) provides an entirely new interface that reduces the complexity of responsive design by showing and telling what is happening in the background, when your website is elegantly adapting to and infinite number of screen sizes.
The Asset module proposes a new approach to the media management in Drupal, resolving a long-standing problem of reusable media files (images, videos, documents, etc) that evolved into the problem of reusable media content (images/videos/documents/etc with the attached content like description/licence/etc).
responsive theme with sass/compass
Provides a Drush command to quickly review cache settings.
Chosen uses the Chosen jQuery plugin to make your <select> elements more user-friendly.