Delta is a super awesome AJAXED portfolio/blog WordPress theme that is perfect for showcasing your work online.
Demo: http://www.wpexplorer.com/delta-portfolio-blog-wordpress-theme-preview
Theme Page: http://www.wpexplorer.com/delta-portfolio-blog-wordpress-theme
License: Dual GPL+Custom
Theme Features
-Responsive Design
-AJAX portfolio option
-Built-in color skins + unlimited color skin option
-Built-in background choices
-Elegant and modern design
-Cool default text logo style + option to upload -custom image
-Portfolio post type + categories for easy management
-Portfolio filter
-Options to change portfolio entries and post image heights
-Portfolio post types – video, slider, images
Templates
-Full-width template
-Sitemap template
-Portfolio without AJAX template
-Portfolio with AJAX template
-Recent posts (portfolio or regular) widget with thumbnails
-Author icon highlight in comments
-Google maps and button shortcodes
-Default form styling
-Simple homepage slider – built into the theme panel
note: Delta is a commercial theme (not free) created by WPExplorer and sold on Themeforest. It's for sale due to the fact that it includes support, updates and its a super awesome theme!