It may be free (and pretty) but it would be pretty much useless to me. And that may be a big part of the problem right there: you're selling in the wrong neighbourhood. Don't worry, you're not alone there. Microsoft is doing the same sort of thing with Windows 8. They have a slight advantage, though, in that they can be more tightly integrated to the metal
and they can stop selling earlier versions of Windows to force adoption for anyone who wants to buy a new machine if things don't work out as planned.
Obviously, I spend a little bit of time in the browser. Almost everyone (except Richard Stallman) does. But my computing life doesn't revolve around the browser, "social" sites or media consumption. I'm both a developer and a photographer (and by that, I don't just mean someone who owns a camera and takes pictures). My machines aren't appliances or toys, they're tools. I don't need easier access to the frills and time-wasters (if anything, I need something that makes them so hard to get to that I won't bother trying — and it shouldn't be scriptable either, or I'll just write a work-around and
still waste time). I need to be able to run several IDEs and rich application clients (a couple of which are Eclipse-based, which is hell on I/O) and to comfortably work on 80 megapixel, 16-bit-per-channel images in Photoshop with up to 100 layers. I need the full attention of the CPU and GPU, as much of the RAM as possible, and the widest pipeline to disk I can get. A simple, phone-like interface, especially one that runs in a virtual environment on a run-time on a host OS (.NET on Windows) taking up valuable resources is the last thing I need. That's not to criticize you or the OS: it's just that I'm about as far from your target audience as possible, and even trialing your work would be a waste of my time and resources (as are the Start Screen and Charms Bar, etc., in Win8).
And a lot of the people here are Linux users. (Which, I suppose, is sort of okay unless you're a serious/professional photographer. The GIMP isn't quite Photoshop, and though you can achieve similar results in most cases, everything a pro would do takes at least twice as long — usually longer — and there's poor support for tablets, real colour management, and workflow-enhancing plugins. It also doesn't integrate well with image management tools on Linux. But I digress...) They're not your target audience either. Nor are the Mac people.
That doesn't leave a lot of people here. There are a lot of folks who might be able to make use of your GUI/OS who are members and who have hosting accounts for their hobby sites and personal pages, but they're not the kind who spend time hanging around the forum. You need to be visible in places where your audience lives. That means places like lifestyle forums and blogs. You might be able to get a little bit of notice in a few scattered tech spaces, like
Hacker News (a startup-oriented news aggregator run by the YCombinator starup incubator) or Reddit (either of those might lead to something on Technorati or Ars Technica if the work is interesting enough), but apart from places like that you probably want to steer clear of techies. You want content consumers and social media junkies, not developers, designers ans SEO guru wannabees.
Go west, young man.