CNET News is reporting Microsoft is finally disclosing a date for Windows Server 2008 (formerly codename Longhorn) release: February 27, 2008.
So if Microsoft is going to respect release plan for Windows Server Virtualization (codename Viridian), its first hypervisor is set for general availability in late August 2008, 13 months from now.
Because of this date, it's more likely Microsoft will release Viridian at same time of VMware conference, VMworld, set in early September since this year. VMware customers could expect release of ESX Server 4.0 as company answer.
Microsoft, Viridian, Virtualization, Microsoft News