As it is a RC the list below should make the final cut to RTM, and there are some key features that we have all been waiting for!
- Virtual machines live migration between Windows Server 2008 R2 clustered hosts
- Network optimization detection during virtual machine placement
- Hot addition and removal of virtual hard disks (VHDs)
- Clustered Shared Volume (CSV) Support
- Support for Sanbolic Clustered File System
- Support for Veritas Storage Foundation for Windows
- SAN Migration into and out of Clustered Hosts
- Expanded Support for iSCSI SANs
- Quick Storage Migration
- Maintenance Mode for Hosts
- Support for VMware Port Groups for Virtual Switches
- Support for Virtual Machine Permissions Assigned in Hyper-V.
Quite a lot of advancements I think you will agree, what are your thoughts on the features - anything missing that you wanted to see?