> IIRC There was an EEtimes article that said the predecessor had used an
> ARM part to do much the same thing but they never publicly announced it.

Actually, I linked to that article (on the Keelback) in the very posting you just replied to (klick on "SLIMpro subsystem"). The statement therein you obviously refer to is this:

"The Keelback device also usesan ARM core in the SLIMpro subsystem, the first time the company has revealed it has used ARM core although it now confirms the first of the PacketPro family, the Mamba device launched last year, was actually its first product featuring SLIMpro with the ARM processor."

So as you can see we're still at square one, because Mamba is the initial PacketPro chip I've been talking about in my previous posting and which was introduced less than one year ago in 2010, not "three years ago". So my question which chip with "a Power PC and ARM on the same die" Mr. Gopi talked about remains open unfortunately, unless you were referring to a different EETimes article.