...my goodness

That is not truth.

It's an AMOLED display, it has a super retarded subpixel layout, it may not be the same thing exactly upside down as it is rightside up depending on what type of AMOLED it is. It can be actually off by a row or more of subpixels causing a bunch of anomalies. For the record that can also happen with an LCD, but it's just more likely to have problems on a dumb pentile layout.

Does it effect video playback ?

If it's got no vsync you might get tearing on the video I currently get tearing on netflix because for some reason that app seems to turn vsync off

You can flip your phone around and use any direction you want and not get this, soooo..... umm..... yeah???

You can flip your phone around and use any direction you want and not get this, soooo..... umm..... yeah???

thank you. i so do not understand how "mounting a screen upside down" will cause these effects, looks like a software issue.

I think they mean the other way, not turn it around, but flip the whole screen so that what you're looking at is the backside of the screen. That being said, i don't believe that to be the case, as that doesn't make sense. This is clearly a feature, not some vsync issue, not an issue at all, it's a feature. The issue is that its not able to be turned off. As to the guy who said something about HL2, no, no it does not do this. I have games that play in the 1000+ fps with no vysnc (obviously) and it doesn't do anything like this