Re: Laptop/convertible+smart phone
I could work that way today, it's not really "future".
The holdback for years was Office (been a LibreOffice user since day one, it's more than good enough) and games. 1/3rd of my Steam library is on Linux now. If Windows were to go away tomorrow, I would barely notice, personally. It would mess up my workplace for a few months until we got the alternatives in, but at home, who cares?
I've invested more money into VMWare at home than I have Windows operating systems. And most of that was for development purposes. Though Linux can build and compile a Windows 32/64-bit app, you really have to test it ON Windows to get a feel for it working properly.
There will be no "year of the Linux desktop". Desktops are dead already. Year of the Linux hypervisor running a bunch of whatever you want is more likely. It won't be long before I'm recommending that people just run VM's in their daily lives. Imagine the hassles that grandma could avoid if you could just roll her back to yesterday's snapshot with one click?
For five years, I managed without Windows at home, while running Windows networks. It was Slackware (Ubuntu was around, but I like Slackware). Then I had an employer-laptop provided with Windows. It made little difference, I still ran the same software. (and, yes, often had to open stuff in LibreOffice that MS Office didn't stand a chance of opening - even MS Works!). Now, work-wise, everything is going cloud and web-based so it's even easier.
If I didn't already have a 7 Home Premium and 8 Pro install loaded on the machine at home, I'd probably not bother with it. Gimme remote desktop for work, a web browser that works on modern sites, a decent chunk of my Steam library, LibreOffice and Eclipse and I'm done. None of that is dependent on Windows any more.
When all my employer requirements include iPad and Android compatibility anyway (so everything is web-based even if the server that makes it so is on Windows), and everything on the server end is a VM, there's not much room for Windows itself except for convenience, familiarity and licensing.