Here is your first $250 laptop running a dual core A-15 Samsung chipset
(the list price is $250, not a discounted price on Ebay)
Don't get too hyped that it is a Chromebook, Fedora and Ubuntu have already been running on the thing as it has a "bootable" SD card slot.
It isn't a 10" netbook, it is an 11.6 inch super thin laptop that is lighter than the old netbooks used to be as the A-15 ARM chips need NO FAN and the battery can be smaller while actually lasting longer. The same machine running Wintel costs over $100 more money.
And, as you can see it moves pretty durn quick even while running emulators and multiple multiple overlaid windows. The reviewer says that the performance is scarcely noticably different from the more expensive Wintel version of the same machine.
Remember, this is just the dual core A-15 Samsung Exnos chip, what Apple is going to be using is the half again more powerful quad core A-15 (Apple A8?) that they have been customizing for their lighter laptops and IPads -- starting out shipping early-mid next year.
Then late next year for Christmas Apple will be shipping out their first 64 bit dual and quad core A-57 chipsets (Apple modified version of course) which will be one hell of a Intel killer of a chipset.
Obviously, the A-15 can run Linux, OS-x Apple, Microsoft RT and by using Wine and the various emulators it can run Office and other various "mission critical legacy" softwares using your favorite Linux as the base layer.
The orientals will do this same sort of thing with the chip except they will likely chose to run their favorite native language OS (Android).
As long as they make the SD cards bootable, you will be able to pick up a laptop for $200 or slightly less and run whatever you want (that isn't MS that is).
Reactos/Wine is the wild card that could totally crumple up MS with all this new hardware coming out --- look for MS to start suing everybody in fluent rented Russian as soon as Reactos goes beta, seeking US import bans, etc. This will likely not work out for them very well as the Russian government "supports" the project as a home written, FOSS (Wine) based program. Plus, if Microsoft were successful in Russian courts, then the project would simply "move" to mirrors in another country that MS can't sue in (can you say China? Iran? North Korea? North Vietnam?).
http://www.reactos.org/en/index.html