what about MS Office?
If Atom 2.0 or 3.0 is good enough, then yes, the consumer market will converge to that. There is a reason tablets are selling like hot cakes and PCs are crashing.
I can partially speak to this; I purchased both a Surface Pro and a Lenovo Tablet 2 for some in-house testing I forced myself to use both for 30 days as a full-on replacement for my normal workhorse -- an i7, dual core, hyperthreaded ULV powered Lenovo x220. My daily work is mostly comprised of Outlook, OneNote, Excel and Word, along with Cisco's softphone IP Communicator and Jabber client, our SCCM and SCOM interfaces, some Windows Server admin consoles, PowerShell, and VMWare vSphere client.
My opinion: The surface, powered by an ULV dual core hyperthreaded i5, seemed every bit as fast as my x220 in everything I did, but at the end of the day it wasn't comfortable to use as a tablet. It was too heavy, it was too thick, it just didn't lend itself to being held in one hand. I absolutely can defend and understand why it was that weighty and thick, as it was every bit the equal of my x220 in terms of processing capability. That didn't make it a good tablet though.
Alternatively, the Lenovo Tablet 2 is powered by the dual core hyperthreaded Atom Z2760 at ~2Ghz. Frankly, for the things that I do, it also seemed mostly the same speed as my x220. Things that were slower were mostly related to the lesser-performing wireless card in this device (it consistently connected at half the WiFI speed of my x220). When it was docked, everything else "just worked".
I do have a fairly weighty Excel sheet that has a TON of data and a decent number of macros, and the Lenovo did choke on that a bit. It wasn't painful, it was just noticeable. Since that sheet is pretty much the gnarliest thing I do in Excel, I could likely look past it.
Because of the size, the weight, the battery life and the only minor hit to performance I experienced going from the x220 to the Atom Z2780, I would gladly trade for the tablet. It's incredibly useful for the work that I do with customers, and it doesn't hinder my ability to get my other managerial-level work done either.