VirtualBox even has some support for Mac OS X now if you want to try to run Mac software and Linux side by side. Any virtualization program that runs on Linux though can run Windows XP and 7.

The hardware/software integration is, bar none, the best on the market. MacOS on laptops is also one of the more elegant operating systems you’ll ever use.

Other customers use Win4Lin to make a stealth migration to Linux. Open-source software actually runs the PC, but all persnickety users ever see is the Win4Lin-managed Windows environment.

Think JBoss.These are, obviously, the best-known examples of the second generation of open-source software companies following in the footsteps of Apache, Linux and other software initiatives, but ...