[quotemsg=10448843,7,328798]Well, as they didn't say what camera they used or how it was configured, you have to assume they didn't disable AWB and that they used autofocus (which can have unpredictable results, when photographing a screen). Even if they avoided those two pitfalls, we don't know anything about the camera's spectral response function. Alone, that would be enough to disqualify any such comparison. Add to that the effects of your display device (I'll bet it's never been calibrated), and you should see that you really can't trust how these images show the respective screens.
They also used images that are so vivid and almost artificial that it's sometimes hard to tell which display is reproducing the images more faithfully.[/quotemsg]
We actually did disable autofocus and awb, all this was noted in our ipad mini review. All pictures were taken at a fixed f/stop and iso setting at the same distance. Second, you can't really calibrate tablet screens. This means we are testing out of box gamut performance.
As for not being able to see the difference, Cambridge Color has some great information on color chemistry if you're not too familar.
http://www.cambridgeincolour.com/tutorials/color-space-conversion.htm
http://www.cambridgeincolour.com/tutorials/soft-proofing.htm
http://www.cambridgeincolour.com/tutorials/sRGB-AdobeRGB1998.htm
A camera's spectral response, (we're talking point-and-shoot, slrs, dslrs circa 2007) and later all have a gamut response larger than that of monitors, even high performance gamut monitors. On the low end of the hierarchy, printers have a smaller gamut response.
This means the inablity to see a difference is tied directly to the monitor you own. If you own a TN-based display, you're very likely going to see less of a difference in these pictures than someone rocking a wide-gamut IPS. That's simply the way the tech is. That's why professional photographs are so picky about the monitors they use. The compression of the picture's gamut clips out highlights, midtones, and shadows on a lower-end LCD.
The difference is definitely there. Your ability to see them is going to be dictated by your hardware.