The Shiira Project has announced the release of latest version of their Mac OS X Web browser, Shiira 2.0. Shiira is a web browser based on Web Kit and written in Cocoa. The goal of the Shiira Project is to create a browser that is better and more useful than Safari. All source code used in this software is publicly available. One of the features of Shiira is Tab Expose. Tab Expose shows all open tabs the same way that Expose shows all open windows (similar to IE7). Shiira 2.0 requires Mac OS X 10.4.