Mac users - reeling from Apple's revelation of a shift to Intel processors - have also been told the name of the next version of OS X, "Leopard".

Leopard may well be a significant code-name for an OS - and a company - that is certainly changing its spots.

The new OS is scheduled to appear "at the end of 2006 or early 2007", Jobs said, adding, "when Microsoft expects to release Longhorn". With the OS and its attendant applications capable by then of running on both PowerPC and Intel chips, Apple is clearly offering PC users a chance at a choice.

Mac market set to climb

Jobs also shared several facts: with two million copies of Tiger shipped already, the migration to OS X continues apace.

Those two million users represent 16 per cent of Apple's OS X user base meaning Apple now claims 12.5 million OS X users worldwide. 49 per cent of users run Panther (OS X 10.3); 25 per cent on Jaguar (OS X 10.2). The rest (10 per cent) run earlier versions of OS X, Jobs admitted

Twelve and a half million users may be dwarfed by Microsoft's Windows user base, but numbers are climbing - fast.

Over one million visitors go to an Apple Store each week, Jobs said. He also showed attendees a chart, a chart that claimed Apple's Mac unit sales to be climbing 40 per cent year-on-year - against an average PC market share climb of 12 per cent, Apple claimed.