HP ships Itanium workstations running Red Hat

“The new HP Workstation zx2000 and zx6000 Itanium-based workstations can now be configured with Red Hat Linux Advanced Workstation edition in addition to HP’s own HP-UX 11i Unix variant …

These Itanium-based workstations are built on HP’s Pluto zx1 chipset and Intel Corp’s McKinley generation of 64-bit processors.”