This is a plain rumor since that's what Gruber, the source, called it himself. Gruber, known best for authentic Apple reports and leaks has quietly slipped a rumor in a footnote of an Engadget bashing post. Gruber wrote the post to point out that there weren't any eleventh hour changes like Engadget reported, in fact, the original reporting by Engadget was clearly wrong since nothing has changed in iPad 2 since January.
