I think you got cause and effect backwards.
Nope. The ULV chip that powered the Air was a processor that Intel shelved for a few years because there was no interest in it. Then Apple came knocking. The success of the air product line caused a dramatic restructuring of Intel's roadmap that emphasized efficiency, which was not what they were aiming at originally.
Additionally, the entire term "ultrabook" was a marketing campaign by intel that heavily subsidized the cost of the chips Apple was using to try to get the rest of the industry to adopt them as well (as they enabled a new form factor that consumers were eyeing). By heavily subsidized I'm talking $300+ million last time I read up on it.
This is one of those few times in tech where the actual roadmap of the industry was shifted to accommodate a new concept (thin and light at the expense of having absolutely the most powerful processors and ports available) by a key player, in this case Apple.
I see the new Macbook as another one of these shifts. I guarantee you that in 4 years time the
norm of new laptops for average consumers will focus entirely on extremely light and completely wireless form factors and capabilities.
If any of you think otherwise, I propose a friendly wager. Place an appointment on your calendar for 4 years from now with my name. If the industry hasn't dramatically shifted to extreme portability being the model feel free to PM me and I will gladly eat crow.

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I hope producing a computer like this means they intend to further optimize the OS. Compared to Windows, OS X is a fat pig that can only run on relatively recent hardware.
That's funny. I work at a university doing the upkeep for 600+ macs on campus. My work machine is a 2008 iMac (Core2Duo). Right now I'm running 10.10.2 very smoothly (I was shocked to see that even transparency is enabled). We have dozens of machines that are from 2007+ that are all running Yosemite with little issue (now that the booting issue from 10.10.1 has been resolved, thank god).
So what exactly defines "relatively recent hardware" to you? Is my 2008 iMac not sufficiently outdated enough for you?
