XPostFacto, a "partially open source" application, allows you to run Mac OS X on unsupported systems, including older G3 units. This lets you take advantage of OS X on legacy Powerbooks and iMacs you ...
Mac OS X Server 10.5 Leopard allows users to run it in virtual machines, which many take as a sign that Apple wants to make strides in the business market Apple has relaxed the licensing of its server ...