Have you checked Magento 1.9 CE?
Magento 1.9 CE is available for users and developers! It offers merchants a new set of features that help create compelling shopping experiences across all devices. It has also unleashed some exciting features for developers as well
The most striking (and obvious) change in 1.9 is Magento’s embrace of Responsive Web Design. Responsive Web Design principles are aimed at a unified experience from desktop to mobile to whatever – keeping the customer experience the same, and lowering your designer’s overall effort to display your site across devices. The new version of Magento displays this via their new default theme.