Использование виртуализации.

Primary Hypervisor Usage for Server virtualisation, Q3 2011(%)

	Avg	UK	FR	DE	US
VMware	67.6	79	65	61	66.5
Citrix	14.4	12	15	20	12.5
Hyper-V	16.4	8	17	16	20.5
Other	1.6	1	3	3	0.5

Взято отсюда http://www.v-index.com/primary-hypervisor-in-use.html