Well the P4 does work best with RAMBUS and it does get a mighty big speed increase when using a 533Mhz bus w/1066RDRAM......
I'd get it if it weren't so damn exspensive. Of course having a job would help too

.
I wouldn't really call that "full support", Iam SiS is still going to support their already released DDR P4 chipset

.
I mean if they said they weren't going to produce any more Athlon chipsets and stopped producing a DDR/SDR version of the P4 chipsets, then I'd call that "full support".
I think SiS is playing a smart move what with the performance gains seen when using the 533Mhz bus w/1066 RDRAM. It'll get those hardcore geeks going...
~klinky