They are still quite common and widely used processors.
Many of us still have Pentium D series 64-bit processor, which has Intel EM64T too but only SSE3.
SSSE3 in Core2Duo has only 4 multimedia orders more. It would be really nice thing to give the
working legacy_kernel for this useful Pentium D processor.
Fortunately 10.6.8 works well with some 10.6.7 kexts and voodooHDA 2.7.4 , but working Lion
or Mountain Lion would be definitely nice.
This Kernel works also on Pentium D CPUs :.-)
Mine is 930 with 3 Ghz.