Drupal responsive theme frameworks

Listing of resources for discovery of responsive Drupal theme frameworks.

What is the best starter theme for responsive web design in Drupal? 

Responsive Theming: How to Apply Responsive Design Techniques to a Drupal Theme 

Example implementations

http://mediaqueri.es

General responsive framework

http://getskeleton.com/

Drupal Themes

HTML5_Boilerplate by Jeff Burnz (Drupal 7 only)

Terrain: 960 Fluid grid. Based on Hexagon. Drupal 6 currently.

Square Grid: lightweight resizable grid framework (Drupal 7 only).

Duone: Based on the Skeleton framework, HTML5 Fluid grid. (Drupal 7 only).