I read through 1 of the blogger post and found that the Novell SUSE Linux and VMWare vSphere 4 will be sell as a bundle if you purchase your software licenses for VMware vSphere 4 after June 2010. In order to utilize Novell SUSE Linux, you will require to purchase the software licenses as well as support contract to get the Novell support on both physical and virtual environment. VMware try to bundle the Novell SUSE Linux Software Licenses with the vSphere 4 now, which meant you will be licensed to install Novell SUSE Linux as the VM guest in every CPU that been licensed for VMware vSphere 4.  One key thing that you need to delve into the announcement to find is that the free SLES is unsupported. You get upgrades, but not support. VMware will offer extra-cost support for SLES  in due course.  VMware will also build all its own virtual appliances on SLES as part of the deal.

Please find the full blog post from here.