Sun released a glimpse of the future for Sparc with plans to release servers based on its future high-end Rock processors...

"The Rock processor family, along with lower-end Niagara models, will employ a design called chip multithreading to let a chip run several tasks simultaneously. Rock previously was code-named 30x because it is designed to run systems 30 times faster than the 1.2GHz UltraSparc III that arrived in 2003."

Rock requires the totally kick ass 65nm process, and should arrive in 2008.