Who knows, maybe the upcoming "x86 killers" ARM chips from nVidia will be the answer to all three of those criteria?
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.
