[costan]

Perhaps it means they're trying to be thorough?

A Xeon implementation would have to secure the QPI links between the CPU chips. These run at significantly higher speeds than DRAM, so the current MEE design would likely not be able to keep up. Also, a Xeon implementation would have to somehow have the chips mutually authenticate each other.

That being said, I wouldn't be surprised if Intel was trying to see if they can get away with the licensing bs in desktops before committing resources to tackling the challenges that I mentioned above.