Anandtech reported a detailed Intel roadmap at this address: http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2528

You’ll find large VT implementation for Xeon 50xx (Dempsey) series CPUs while it’s uncertain for Xeon MP 70xx (Paxville) series. Upcoming Itanium 2 series 90xx (Montecito) CPUs will feature VT too.