rPath says "VMware is worth $17M"
http://billyonopensource.blogspot.com/2007/08/vmware-ipo-sizzle.html
VMware is worth $17B because their technology enables the dream of utility (or grid) computing. By eliminating the operating system as a bottleneck for attaching applications to computers, applications can now run flawlessly on any computer that has the VMware hypervisor as the bottom layer -- with no expert resources required for testing, porting, stabilization, etc.