Sounds as if the big iPad isn’t launching any time soon

An unannounced Apple product has been delayed, according to Bloomberg, which is reporting that production of the long-rumored 12.9-inch iPad is scheduled to start in September.

This news makes it even unlikelier that Apple will introduce its “iPad Pro” at its Apple Watch event in San Francisco next week. The report said that Apple planned to start production this month, but pushed it back because of supply issues with display panels.

The current iPad Air 2 has a 9.7-inch screen and iPad Minis have a 7.9-inch display. Although an iPad with a 12.9-inch screen has never been confirmed by Apple, there’s a lot of evidence that it exists. Questionable schematics for the device leaked in Japan late last year, and references in iOS 8 indicates that Apple has been working on a split-screen mode, which would be perfect for the device’s bigger screen.

Patents and analysts have suggested that the bigger iPad will support an optional smart stylus. Bloomberg reported last summer that the big iPad was due in the first quarter of 2015. The Wall Street Journal has indicated that the big iPad was previously delayed because of a focus on the iPhone 6, which came out last fall.

If production starts in September, it could be a tight squeeze to get the product on shelves by Christmas. Last year, Apple announced new iPad models in October and shipped them a week later. But missing the holiday season might not matter to Apple, especially if it angles the bigger iPad as a business-oriented tablet, with a possible tie-in to its enterprise partnership with IBM.