the photos were mostly targeted to prove that rgb stripe isn't the new improved standard, as many like to say, just the old tech used in the N85, i8910 etc and got replaced with pentile later for what it seems to be pixel density constraints. Another thing I suppose we can see is the distance between subpixels, but this is a little bit fuzzy, because of the glow that maybe makes bright spots bigger on a photo, and the same brightness is very difficult to achieve on all phones.

I can try and do a more 'scientific' test, but this one just shows the subpixel layout. Scale, brightness, orientation etc are random.