Glenn Fleishman writes "Apple has changed its license for Mac OS X Server 10.5 (Leopard Server) to allow virtualized instances. VMware and Parallels are poised to offer support. This probably presages a thoroughly overhauled Xserve product with greater capability for acting as a virtual machine server, too. 'Ben Rudolph, Director of Corporate Communications for Parallels, told me, "Enabling Leopard Server to run in a virtual machine may take some time, but we're working closely with Apple on it and will make it public as quickly as possible." Pat Lee, Product Manager at VMware, concurred, saying "We applaud Apple for the exciting licensing changes implemented in Leopard Server. Apple customers can now run Mac OS X Server, Windows, Linux and other x86 operating systems simultaneously on Apple hardware so we are excited about the possibilities this change presents." Although neither company committed to specific features or timetables, it appears as though we should be seeing virtualization products from both that will enable an Xserve to run multiple copies of Leopard Server in virtual machines.'"