HP Opteron Blades, Proliant Supports Sun Solaris 10
"All HP blades now support Sun Solaris 10 in 32/64 bit but that's only the beginning. HP's Opteron DL145-G2 is now certified for Solaris 10 32/64 bit too, and sources suggest there's a lot more to come. We'd say that OpenVMS for Opteron is a bridge too far for Hewlett Packard, but additional support for Sun Solaris 10 suggests a degree of cooperation that would have been totally unconceivable two years ago."