Re: your phone will never be able to produce those images because
Meanwhile, have a look at the real pictures:
http://www.nokia.com/global/products/pureview/
These are explicitly marked as being shot with the 920, and you can see they are shot at completely open aperture (no blade-diffraction). They don't look like SLR pics in any case (there are some things about the image quality that point to a physically small lens and sensor). The huge improvement in optical stability performance is just basic physics - Nokia's system can move the whole assembly (lens + sensor) because it only weighs a few grammes: DSLR or pocket systems must compromise because the mass of the lenses/sensor is too great to allow this.
The guy who's in charge of camera development at Nokia (Damien Dinning - https://twitter.com/phonedaz ) has stated that the sample shots are real, and the only reason they haven't been released full-scale is because they're not using final firmware. Having seen how photo websites tear apart pre-production DSLR pics, I can understand this attitude. The pictures were also shot handheld, not on tripod.
No doubt about it, it looks like their marketing people have overstepped the line, and given everyone with a vested interest a good excuse to deflect attention away from the real quality of the product. Whoever made that decision should be fired. But there's nothing fake about the camera - all the attention about the faked video seems to be ignoring the fact that there are enough real samples out there to show just how good this system is, including footage from journalists and bloggers at the launch event.
Also, I think people are underestimating (or trying to minimise) how big a deal good low-light photogtaphy really will be for customers. Not for pros (who always light portraiture), but for the casual snapper.
A guy I knew used to run a 1hour photo back in the days of chemical phototgraphy, and he said he could categorise 80% of his lab's throughput as being pictures of people sitting around a table at night. Look at what's put up on Facebook - indoors pictures, groups standing up, at night, at a club... low light. Currently, no mobile camera can take these pictures well, with the exception of Nokia's or Samsung's (older non-Android) cameras which both had Xenon flashbulbs - but flashes cause red-eye, and using a flash is pretty anti-social in some situations (like a dark restauraunt).
So, kudos to Nokia for sidestepping the specs race and actually providing customers with something they will use -- something Apple also do very well, it must be noted. The other "sleeper" killer feature on these phones is the capactive screen tech that works with gloves on, or for that matter, with long fingernails -- this isn't new tech, but Nokia are the first to think it's worth implementing on a phone. Finnish winters, I guess (although Seoul is fucking freezing in the wintertime too)...
In another universe, I'd have loved to see this phone running with Maemo, but WindowsPhone 8 has moved on a lot, and is starting to provide unique ideas of its own: the "Lens" plug-in system that lets app-writers embed their feature into the built-in camera app are a great idea, for instance. And now that they're allowing native, unmanaged code, I could consider writing for it.