This PDF file gives a peek at the upcoming “CoolThreads” processor roadmap.

Page 41 shows details of the upcoming LDom (Logical Domain) feature on Niagara platforms, allowing the machine to be partitioned into a dynamically reconfigurable set of virtual machines, each with its own independent operating system.

Page 42 lists the processor roadmap, with today’s UltraSPARC T1, and the upcoming Niagara 2, “Victoria Falls”, and Niagara 3 CPUs.

Niagara 3 is rumored to support more than 100 simultaneous threads.