According to news emerging here, Apple has wrapped up work on its long overdue OS upgrade popularly known as Leopard and will release the OS update on October 26.
In expectation of this release, it will also be releasing a final update for Mac OS X 10.4, which will be both a final maintenance and security update. It will also with this patch, offer the final rounds of Dashboard updates. Apple has also been working with its sales and support team, to help make the transition to the new OS a smooth one for customers.
This update has been a long time in the making. It was announced way back in 2005 and faced numerous delays due to focus shifting to the iPhone.