It appears that KVM, the Linux kernel’s built-in virtualization, has become mainstream with the Open Virtualization Alliance now having 200 members. Started by HP, IBM, Intel and RedHat the Alliance seeks to promote and standardize KVM and associated tools so that price/performance and competition thrives.
I used KVM to make videos and found it quite solid for what I do, running a few virtual machines for testing new software. If businesses find the same reliability they will use it widely for virtual servers and cloud computing. This should stimulate growth of GNU/Linux on servers and desktop where virtual desktops are employed.
I can’t wait for my new motherboard to arrive so I can exploit KVM again. For $50 I can install a new motherboard that supports a CPU, RAM and storage that really can use KVM well. I can run several virtual machines at once and create a virtual “anything” in the way of systems to test, saving me huge capital expenditure and keeping space and power requirements minimal.