Joe, that is a correct statement (assuming you meant "selling Itanium based systems", rather than "selling Itanium").
Now try this one (it's also correct):
"3 out of 4 Tier 1 vendors will be selling Itanium 2 based systems by mid-year (HPQ, IBM, Dell)."
Here is one more.
"4 out of 4 Tier 1 vendors have not announced any plans for Opteron based systems (HPQ, IBM, Sun, Dell)."