Reported by The Verge, not nibnow. We are not the publisher of this story, only the source is.
Owners of the iPhone Duo may need to replace their device if the inner display problem causes visible cracks or a bright line, affecting usability.
Following reports of iPhone Duos with cracked and broken inside screens, often showing a bright line running from the center to the right side, Apple says in a statement to Bloomberg and 9to5Mac that it's aware of "an issue impacting the inner display" on a "small number of iPhone Duo units." If your iPhone Duo is affected, Apple says to contact AppleCare for a replacement. Here is the full statement, which Apple's Alex Kirschner shared with The Verge: The response to iPhone Duo from early users
The iPhone Duo is a model in Apple's smartphone lineup, and Apple typically issues repair or replacement programs when hardware defects affect a subset of units.