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According to the Mac users site, OS 10.6 will run on Intel-based hardware and will finally end support for the older PowerPC processor-equipped Macs ? probably much to the dismay of grey-bearded university lecturers.

And to add to this debate, another tech site, ars technica said Apple is keeping to its Big Cats naming protocol with OS 10.6 going by the name of "Snow Leopard."

However looking at it statistically, the latest Mac OS, Leopard or OS 10.5, was released in October 2007, some 30 months after its predecessor, Mac OS X 10.4, or Tiger.

But that version was launched just under 18 months after the previous OS, 10.3, or Panther as it was called.
Therefore the average time between Mac OS launches has worked out to be roughly 16 months, which would mean OS 10.6 by rights should be launched in January/February 2009.

However we are talking about Steve Jobs and WWDC here, so you never know- statistics after all, are not standards.