In these days, Yootheme present YT Square, its template release in November 2013, which is powered by UIKit. This helps you to build powerful websites by HTML, CSS and JS extensions. Yootheme equipped this template with their own widgekit, which includes beautiful sliders, galleries, accordions and many more. You can choose of 8 pre-defined color styles. The integrated ZOO extensions garantuess nice styles for special contents, like blogs or documentations. YT Square is responsive, by the used Warp Theme Framework, so you can use it for any website content in Joomla 2.5 and Joomla 3.0. 

Joomlabmaboo's Flux is powered by Bootstrap and Zenkit, a content extension to build beautiful websites with K2 content. For this, also Zentools is onboard. Joomlabamboo includes LESS compiler. This allows you to build simple LESS code to speed up your website. Flux's layout comes in 8 preset styles and based on T3 Framework V3. You can use your website thereby for any device. The download is commercial. Flux is native to Joomla 3.x.

Kurumsal is a responsive business theme for Joomla 2.5 and Joomla 3.1, which will be delivered by Optimum Theme with K2 and OT Slideshow support. You use this template in 5 colors (blue, black, yellow, red and turquoise). The layout runs on T3 Framework, is thereby lightweight, fast loading and ready for any device. The mega menu fits perfect and includes a nice fade effect. Kurumsal is easy to set by template admin. Overall a cool template for a cheap price.