Let's see what's so new about this.. NeXTSTep (from which the current AppleOS is descended from) was running on a 486 years ago..
Plus the core Unix that the Apple OS is based on Darwin has always been out on a FREE bootable Intel format disc. So what's new news here, nothing except someone broke thru their supposed digital rights management.
Let's face it Apple is now the "iPOD" company and will soon be totally a software company.. One only has to look at their hardware marketshare to see that. If their cool software ran on non-PowerPC platforms, they would and will make a whole lot more money..