So PowerPC is dead you say?

[dammy]

I know very well Nvidia's PR strategies and I really doubt there will ever be any x86-killers from them. According to their statements, Tegra3 should have been the fastest, most powerful ARM based chip on the market, however Snapdragon S4 outperforms it in many areas, while the iPad3 competes fairly well with Tegra3-based tablets.  And while Nvidia improves its Tegra line of ARM-based SoCs trying to follow its roadmap, Intel makes thinner and thinner transistors, placing billions of them into 22nm-based Ivy-bridge CPUs. Intel has both the knowledge and the economic power to enhance their Atom line as they wish so, if ARM really gets too dangerous for them, they just need to answer once for all.

Depends on what you consider dangerous.  ARM already has the lion share of CPUs being produced, even if you combined Intel's and AMD's x86 CPU production:

[dammy]

The whole "desktop machine is dying" thing is pretty darn premature. We've been hearing it for years, and while additional devices are becoming mainstream, it hasnt been to the detriment of desktop sales.
There's quite a few tasks that simply arent practical elsewhere.
Desktop cpu sales continue to increase year in year out. Hardly demonstrative of it becoming a dying market.

Desktops account for about 20% of computer sales and has remained relatively flat line at 20% over the past several years.  It's not on it's death bed, but it's certainly nothing what it use to be like either as industry continues to project desktops around 20% while portables (laptop/notebooks/tablets/smartphones) eat up the rest of the 80% of the computer market.

If ARM ever gets a stable environment that x86 has enjoyed, desktops will take another drop in sales.

[dammy]

What's most amusing about this is that a lot of the satellites that power the phone networks do use powerpc. It's a funny ol' world.

It's not that surprising since it's only significant sales for the PPC are for embedded networking.