Single FCPGA(2) motherboards with 512 cache support, any known to exist?

[KpocAlypse]

By looking at the anand review, it seems that the tyan tomcat might, and by looking Here , i'd assume the ST6 and ST6-R will also support the "s" chip. Anyone know of any others, or know that anything above is wrong?

(fingers crossed on the TUSL-2)