It looks like owners of the Samsung Galaxy Tab 10.1 are facing yet another display issue: Newton's rings. According to Wikipedia, Newton's rings is an "interference pattern caused by the reflection of light between two surfaces;" but how does this apply to the Galaxy Tab, you ask? Imagine what motor oil looks like when combined with water, now place that under the screen of your Tab 10.1.
Image by wesbalmer of XDA Forums
That's what a whole slew of users over at XDA are dealing with at this very moment. The thread is currently up to eleven pages, and basically every single post is an affirmation of this issue.