Slidevana (http://www.slidevana.com) has launched its Keynote theme for Mac, iPad and iPhone users. It includes over 130 slide templates inspired by common business frameworks.

Designed by MIT Sloan MBA and entrepreneur Ravi Mehta, the presentation templates have been created specifically with the busy executive in mind, according to Mehta, Slidevana’s creator and CEO. Presenters can even dictate professional looking presentations with Siri, Apple’s speech recognition technology.

Slidevana has been designed from the ground up as a Keynote theme for iWork Keynote ’09 for Mac and Keynote for iOS. For a limited time, it’s available for US$69, 50% off the base price of $139.