Sportnow is an elegantly designed free WordPress Theme with a calm color scheme. That contain Widget ready, featuring All In One SEO and much more.
TechNews is a free WordPress theme with 2 columns Option/Admin Panel, featured posts and post thumbnail image. Suitable for business blogs.
Tech9 is a WordPress theme with a simple, elegant and light design. This theme consists of a edgy white layout with custom js built in: three / four column fluid layout.
LiveTwit is a WordPress Theme could be really useful streaming live twits on some important event or, ongoing hot discussion on any topic. Setting it up for this theme is really easy with it’s built in Theme Control Panel. You get several great color styles, and options panel to set everything up. Theme performs page refreshing using ajax.