Alessandro Perilli over at Virtualization.info authored an interesting blog post before the start of VMworld 2008, including some speculation on his part that the next-generation of VMware's ESX hypervisor -- ESX 4.0 -- may possibly be announced at the show.

VMware did reveal some information about new ESX features during VMware CTO Dr. Steve Herrod's keynote on Wednesday morning, including some of the features that Perilli speculated would be in the next revision of ESX.

Here's a partial excerpt from Perilli's post listing some of the expected features in ESX 4.0:

  • 64-bit kernel and console operating system (COS)
  • clustered VirtualCenter Servers
  • ESX hosts profile management
  • cross-hosts virtual networking
  • 8-way virtual SMP
  • virtual machines fault tolerance across multiple hosts

You can see the rest of the speculated list of features here.

While VMware didn't officially announce ESX 4.0, what does the new VDC-OS product roadmap mean for the ESX branding strategy? I'm sure ESX 4.0 and VDC-OS will be a hot topic of discussion at the Virtualization Congress next month in London