Mac developers are some of Apple's most passionate and faithful boosters, and they build most of the software that makes the platform great. It's understandable that Apple is focused on the iPhone and iPad this year, but they shouldn't squander the huge success of the Mac. I think the omission of Mac software from the ADAs represents a missed opportunity for Apple to sustain enthusiasm among Mac developers.
It makes me wonder if Apple will make an announcement at WWDC about the future of the Mac, and whether the omission will make more sense in light of that. Otherwise, it just seems like botched publicity, and an unnecessary jab at developers who are already feeling less appreciated by Apple than they did in years past.