Finally it's (almost) here! This new GSX version is absolutely cool and introduces so many features: -) 3.6GB memory per virtual machine to support larger server applications -) Teamed network adapter support, SCSI backup devices -) 10-20% better disk and networking performance -) Enhanced Management and Portability -) VirtualCenter-based customization and provisioning of server images/configurations -) Windows integration for performance monitoring and event logging of virtual machines -) Automatic virtual machine start-up and shutdown -) PXE provisioning for booting and installing operating systems into new virtual machines over the network -) Ability to migrate virtual machines from GSX Server to datacenter-class ESX Server Look at official announcement and first technical documents.