> Who's using SPARC over X64? A lot of telecoms stuff. > Who's using Virtualbox over HyperV, Libvirt or VMWare? A considerable number of people who want an o

> Who's using SPARC over X64? A lot of telecoms stuff. > Who's using Virtualbox over HyperV, Libvirt or VMWare? A considerable number of people who want an open source virtualization solution that is relatively painless to use (so, not libvirt).