Federico Viticci at MacStories:
I wouldn’t be surprised to see Apple move from a monolithic iOS release cycle to two major iOS releases in the span of six months - one focused on foundational changes, interface refinements, performance, and iPhone; the other primarily aimed at iPad users in the Spring.
I think it’d make sense for Apple to dedicate more time and engineering resources to a separate, more focused iPad release. If history is of any indication, it’d be reasonable to expect more iPad changes coming with a big mid-cycle software update8 and an iPad media event in the Spring to refresh the 9.7-inch and 12.9-inch models.
Makes a lot of sense to me. The fall is all about new iPhones anyway. Why not focus primarily on iPhone features for the fall release, and then target a bunch of new iPad features for a dot release a few months down the road?