It doesn't say anything about the camera quality, though. It seems like the only reason the iPhone 5 could come anywhere close to the Lumias quality is by jacking up the ISO to 3,200. Now you cannot compare the iPhone's camera to the one of the GS3 because the ISO is set to 800 on that device.
The only information you get out of this test is that Samsung locks the ISO to 800 and shutter speed 1/17th sec. even if the cell phone notices that it's a low light situation, that Lumia takes very good pics at an 1/3rd of a second shutter speed and ISO800, and that the iPhone jacks up the ISO all the way.
Samsung should definitely update their camera app because it appears as though their camera is worse than the one in the iPhone when Apple actually only works with ridiculously high ISO values. Nokia is its own league entirely and I hope everyone follows their lead.