> yes, they appear to have given some early Titan products to select
> customers. You and I will never see one.

Fair enough, but I don't consider me to be any kind of gold standard. It's funny to imagine only the things existing that I've seen with my own eyes ;-)

> Why not migrate Titan to a finer process? Wouldn't that afford the possibility
> of higher clocking?

Yes, that's the rule of thumb. Seems there's more to the story than Applied Micro's telling.

> Does the loss of their design partner to Apple mean that some part of the
> intellectual property behind Titan can no longer be used?

That would certainly be the perfect excuse. But remarkably, they don't use it.

> I'm further confused by their references to IBM design components. Does either Titan
> or the PPC465 use significant design elements from their older IBM licensed products?

I can't say for Titan, but PPC465 is IBM IP the same way the other cores (PPC405, PPC440, PPC464(FP)) used by Applied Micro are. And considering that both PPC464 and PPC465 belong to the same core family (PPC460) I'd think that they share some significant design resemblances.