See roomeon.com ... 3D interior designer for mom+pop at least that's the idea. Old buddies of mine are doing this. Only desktop app though if I were them I'd get busy writing a WebGL version Real Soon Now.

Not sure if they have an English version... gotten pretty popular since their launch a couple months back. Not sure if rich yet though ;)

Ikea (among others) has this http://freshome.com/2010/08/18/10-best-free-online-virtual-r...

That's nothing compared to how they could have it.

Imagine, I take a movie of my front room. The app calculates the lengths and widths of my room and everything in it based on something (perhaps perspective). I go to a furniture store (or online), and want to see how that sofa will look in my front room. Maybe I take a photo of that sofa, maybe there's a qcode on it. I want to see how that sofa will look, how it will fit into my front room. Will it be too big/too small? Is it too dark/too light/the wrong colour?

The biggest barrier left between buying some furniture is imagining how it will look and fit into the space you already have. Some people can't imagine colours accurately, some people can't judge sizes accurately, many people can't do both.

There is an augmented reality furniture app out there. Can't remember the name off hand, but some googling will probably reveal it.

Saw a demo at a meetup recently of the iPad version. Pretty slick :)

http://www.snapshopinc.com/

Nice, just the sizing part and the photo of an item you like parts to go :)

Augmente is doing something like this: http://www.augmentedev.com/drupal7/content/new-video-summari...