VMware vSphere 4 will be officially launch tonight at 9am PDT time zone. As we are sitting in Asia, there are 15 hours different away from us, and most of the guys may not able to join the web cast tonight.

VMware vSphere is the industry’s first cloud operating system, transforming IT infrastructures into a private cloud—a collection of internal clouds federated on-demand to external clouds—delivering IT infrastructure as an easily accessible service. Enable the next generation of flexible, reliable IT services with the efficiency and low cost of cloud computing—featuring uncompromising control over service levels.

Below is a quick screen shot which explain the new licensing model which will apply for the vSphere 4 the next generation of ESX Server from VMware.

vspher4

Official VMTN Blog

VMware vSphere 4

Now the licensing model will be separated to 3 different categories. Standard, Advanced, Enterprise and Enterprise plus. The additional differences within Enterprise plus and Enterprise is only about the 3rd party multipathing, distributed switch and  host configuration control.

There are also quite a number of changes in the new license model, which you may need to refer here.

Again, you may check out VMware vSphere 4 key features is here.