[Jorge]

Half of the Macs sold now are to people who are fed up with Windows and want a better system.

Half of Macs? What is that, 2% of the market?

I'm impressed.

[RegulatorCountry]

"Half of Macs? What is that, 2% of the market?"

It's former Microsoft Windows users, who chose to abandon the Windows operating system. That means Microsoft marketshare is declining, year over year.

[HAL9000]

Half of Macs? What is that, 2% of the market?

The Windows-to-Mac migration rate is currently about 3% of the total U.S. market. It was 2% last year, and 1% before that.

Vista may help Microsoft to lower the Windows abandonment rate for a while, but I've seen a lot of XP users on this forum who are saying they intend to upgrade to Macs instead.