VMware ESX 3i hypervisor:

A hypervisor (also: virtual machine monitor) is a virtualization platform that allows multiple operating systems to run on a host computer at the same time. The term usually refers to an implementation using full virtualization. ...

VMware ESX 3i hypervisor is based on core VMware virtualization technology. It is an OS-independent virtualization platform. It is considered to be industry’s smallest hypervisor (32MB) which offers high levels of security and reliability.
VMware ESX 3i hypervisor delivers single-server consolidation with fast and easy deployment. With this the first virtual machine can operate immediately following the booting of server with pre-configured and optimized hardware configurations.

VMware Infrastructure 3 (VI3):

VI3 provides automatic load balancing, business continuity, power management and the ability to move a virtual machine across physical machines with no service interruption.  In addition, customers who are already using VI3 can plug-and-play virtualization-enabled servers into their datacenters to dynamically and automatically expand the pool of resources (CPU, memory, and networking) available to meet their changing business requirements

VMware Announces Agreements to Embed VMware ESX 3i Hypervisor across Broad Lines of Servers from Dell, Fujitsu-Siemens, HP and IBM

Systems Providers Will Ship Servers Embedded with VMware in the Next 60 Days

http://www.vmware.com/company/news/releases/3i_rollup_vmworld.html