I personally have not heard of this feature which was supposedly "widely advertised." Either way, the Canadians are claiming that Sony is not using a 90nm process, but rather a 130nm process.

I didn't find any interesting news today, so this is just from the original Canadian press release:

Semiconductor Insights Reveals Sony PlayStation X (PSX) Not Yet Ready for 90nm

OTTAWA, January 29, 2004 — Semiconductor Insights (SI), the leader in technical and patent analyses of integrated circuits and structures, today revealed that Sony's widely publicized 90nm EmotionEngine + Graphics Synthesizer (EE+GS@90nm) found in the PlayStation X (PSX) is still shipping in 130nm technology. "This discovery is contrary to Sony's announcement about this device", said Derek Nuhn, Senior Vice President and Chief Operating Officer of Semiconductor Insights. "Manufacturers, including Sony, are under great market pressure to deliver at 90 nm, but the reality is many are not ready."

The PSX family reinforces Sony's strategy to combine the company's game and electronics technologies. The PSX is currently being promoted as the first Sony system based on the EE+GS@90nm processor, which combines the PlayStation 2's Emotion Engine and Graphics Synthesizer chips onto a single die. Semiconductor Insights removed the EE+GS@90nm chip from the PSX, model DESR-5000, and determined it to be 130nm technology with a die size of 90mm². This is in contrast to Sony's widely advertised claims of 90nm technology and an associated die size of 86mm² for the PSX.

"We often see discrepancies between announced ship dates and technology nodes, as companies are under increasing pressure to over-hang the market", said Nuhn. "The interesting issue here is how Sony met their announced die size, while implementing the device in the older technology node. As our investigation proceeds, we will be reporting on the PSX in more depth."

For additional details on the Sony PSX chipset, other 90nm devices, and/or related analysis available from Semiconductor Insights, please visit www.semiconductor.com.

Press Release:
http://www.semiconductor.com/resources/press_releases/2004_01_29_1.asp