PowerPC 970GX mentioned on IBM's site

MacBidouille has reported, yesterday, that an article on IBM's site is was mentioning the existence of a PowerPC 970GX processor in the PowerPC G5 family.

Here is the part of the article that mentions the PowerPC 970GX:

The only processors currently supporting AltiVec are the G4 and G5. The G4 (including model numbers 7400 and 7410) and G4+ (7450 and 7455) processors are made by Motorola. (There are more models than just the ones listed here, but these are the most widely discussed.) The G5 chips include the IBM 970, 970FX, and 970GX; these are essentially POWER4? cores with an AltiVec unit bolted on."

The reference has been removed today and there is a note from the Editors instead:

"Our apologies!
The original version of this article contained an erroneous reference to a "970GX." We apologize for any confusion this may have caused.
--Editors"

The article did not give further technical details on the chip, we only learn that it is based on the Power4 architecture, like the PowerPC 970 and 970FX do.