Sun’s VirtualBox is a tool I’ve come to rely on for virtualization, and I seriously rely on virtualization. What is virtualization and why do I rely on it so much? Virtualization, in the most basic possible sense of the not-really-a-word, is a method of running one or more operating systems inside another wholly separate operating system. I rely on it so much, because honestly, I have multiple geek personalities to deal with. One of me has a long history of geeking out to windows tech and is an avid gamer so it is essential to my computing well-being that I keep a decent Windows-based PC around. Yet, another me has hefty development interests Linux and Open-source technologies. I don’t see that changing anytime soon, and I have a lot of work ahead of me to bring those skills on par with my lengthy experience in Microsoft technology. Furthermore, I’m certain there are me’s out there that I haven’t even met yet.