WordPress Themes and Theme Frameworks give you the ability to design the look and feel and modify much of the functionality of WordPress. Here are the themes we he had in creating:

• K2
  The spiritual successor to the “Kubrik” theme that ships as the default. Eric Marden is a core developer with the project and most of the themes we create are Child Themes of K2.
• Shopp Architect
  A theme framework for the Shopp e-commerce plugin for WordPress. Built using the Blueprint CSS 960 grid framework and loosely based on K2 and Thematic.