Few Retina iPad mini units suffering from image retention issues
 

It has been discovered that few Retina iPad mini units are showing image retention issues, no one knows exactly how many units are affected by this. The discovery was made by Marco Arment of Instapaper fame, who originally developed a grid test to detect a similar problem in the Retina MacBook Pro models. Quite a [...]

http://vr-zone.com/articles/retina-i...tention-issues