Digitimes is not always the most credible of sources, but it is today suggesting that the 12.9-inch iPad will be manufactured by Quanta Computer, launched in October and targeted at the education market, citing its usual anonymous “supply chain sources” … 

Given Apple’s commitment to the education market, with a particular focus on iBooks textbooks, a focus on the education market seems at least plausible – even if the iPads into schools move has not been entirely without glitches. However, it’s far more likely that the education market is merely one channel of interest to Apple.

While the rumors have been reasonably consistent on a 12.9-inch screen and a close-to-4K 2732×2048 resolution, there have been some sketchier suggestions that the device is already in production and set for a spring launch. Apple reversing the switch it made from spring to fall launch dates for new iPads seems highly unlikely, and this latest rumor does gain credibility points for suggesting an October launch.

It is, however, also claiming a May launch date for the rumored larger-screened iPhone, when Apple has been on a fall release schedule since the iPhone 4S in October 2011. Bloomberg suggested last month that there would be two models, with 4.7- and 5.5-inch displays.

So, 12.9-inch iPad, maybe more likely than not by this point; 2732×2048 resolution, makes sense; October launch, if it’s happening, then yep; education target, as one of many markets, sure – as a sole focus, no. New iPhones in May, highly unlikely.