If only it were green. That’s what I found myself thinking after Sun Microsystems said it’s paid an undisclosed amount for Innotek, the makers of open-source desktop virtualization software VirtualBox Virtual Machine. With an earth-friendly spin, Innoteck could have created a trifecta of buzzwords that would have really pumped up its valuation.

However open source (please recall Sun just spent $1 billion buying open source database guru MySQL) and virtualization (think VMWare’s buy of Thinstall in January), are plenty good, especially given that Citrix paid $500 million for open source server virtualization company XenSource. For those of you wondering who might be next, think about Parallels (formerly known as SWSoft), whose software competes against VirtualBox.