Microsoft promises bright, complex virtualization future – at the Register. Server R2 is a decent product, actually. Although I’m annoyed at it’s complete dependence on installing IIS and making assumptions about my ability to be a domain administrator to get the basic package working. Fortunatley, I’ve become reasonably competant at figuring out microsoft freaky IIS code and permissions.
I’m also using VMWare’s product. Frankly, they’re both pretty darn nice. I like VMWare a little better, but only because it’s cross OS.