Slightly over two years ago, shortly after the Intel switch announcement, I wrote:

…the current installed base is something over 30 million PowerPC Macs (or even more, depending on your sources). By the end of 2007, Intel Macs will be perhaps 15% of that. It will take at least 5 years, probably more, for Intel Macs to surpass the PowerPC Mac installed base.

I’m pleased to see that Mac sales were so good that this milestone – equal number of PowerPC and Intel Macs – will apparently be reached before the end of 2007. At that time, some people feared developers would start releasing Intel-only versions of their software soon; as far as I know, except for natural exceptions like Parallels and VMWare, this hasn’t happened.

And, while recent news indicates that the upcoming Leopard’s hardware requirements have been upped a little, most recent G4s and all G5s will still run it well. Older G4s will, I suppose, be more disqualified by video speed restrictions than by CPU speed as such.