An incautious press release from PCS LabMentors revealed VMware is still working on the VirtualCenter 1.x branch. despite availability of VirtualCenter 2.0, and it’s going to release 1.4 version:
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Joe Khoury, President of PCS LabMentors, LTD., described the expansion of the relationship indicating that “PCS LabMentors had been selected to participate in VMware’s private VirtualCenter 1.4 beta program.”…
It’s sensible thinking VMware could continue developing ESX 2.x as well.