2006 Sun UltraSparc VI New Sparc chip. Related to the Sparc64 VI chip due to Sun/Fujitsu cooperation.
2007 Sun UltraSparc VII / T2 New Sparc chip taking advantage of asynchronous technologies. Some unconfirmed information indicate it may have been canceled along with other UltraSparc chips due to the Sun/Fujitsu partnership.
May now be renamed to UltraSPARC T2? Will in that case be capable of handling 64 threads.