[zbentley]

It will push OSX developers to other platforms. OSX likely serves the purpose (for Apple) of a Mac hardware value-add plus a revenue funnel into iPhones/iOS. At worst, OSX/Macs are basically a glorified iOS device dock. Even if the worst isn't true, though, there's very little incentive for Apple to spend resources on enticing developers onto OSX; they don't make much money/prestige off of it, and I'd be willing to bet that OSX app-store-distributed payware apps' revenue to Apple is a tiny, tiny fraction of what iOS apps get them.

TL;DR they need to attract developers onto iOS, not OSX, and developers are already plenty attracted to iOS because money.