I thought that most people would have seen this awesome fling by now, but I received a couple of questions if it was already possible to migrate from the Windows vCenter Server to the vCenter Server Appliance. Surprisingly enough as William Lam wrote an excellent blog post on this subject. Anyway, this blog is just a simple short pointer to the Windows vCenter to vCenter Appliance migration tool and to William blog post. Read it, and go for it!