Some iPhone 4S users are complaining that they are seeing a yellowish discoloration on the screen of black iPhone 4S models. Apple has had issues with a yellow tint caused by glue that wasn’t cured completely in the past. Apple’s new iOS 5 has proven to be very popular.
» Read more: IPhone 4S screen issues, iOS 5 on 1 in 3 iOS devices, iPhone 4S video