Cavium(now part of Marvell) has been doing that sort of thing for a while; but in somewhat lower profile areas. Poke a NAS that isn’t total trash but doesn’t advertise its x86-itude and you might find them there, along with some networking applications.
What has always sort of puzzled me about that niche is how there are a few, either niche or vaporware(Cavium is low profile, Qualcomm’s effort appears necrotic(possiblity for the best, imagining the collision of their theory of driver ‘support’ with real computers), AMD doesn’t exactly talk about the A-series Opterons now that they have x86 options that don’t suck again); but there seems to be very little going up against, say, Avoton parts(essentially Atoms with more cores and ECC support; for $$$); which are the ones that are likely to be within range of the cores you can just license off ARM, right now).
You can get all the smartphone and application processors you want; as long as nothing designed for more that a modestly chunky tablet and almost definitely horrible BSPs doesn’t bother you; but there’s not much 'we bolted 8 A-73s to a real memory controller and PCIe root; and that’s pretty much it, go forth and be merry" option.
I don’t know if the phone market is just that much bigger, if people thinking about that know that Avoton could get some hefty price cuts long enough to make them go away, or what.
