After updating the SAP Linux support notes 1122387 and 1122388 to reflect VMware vSphere support (see Update on support for vSphere for SAP productive systems), the updated SAP support notes 674851 and 1104578 for 'Virtualization on Windows' have now been made available as well... at least in German. (The updated English version should be available shortly). In addition to the production support for vSphere, the support notes also contain other welcome clarifications.
We will communicate the update of the English version once available. Until then: know that vSphere is supported with Windows and Linux guests, and/or make extensive use of your favorite dictionary.