Apple hasn't handpicked a list of apps which are integrated, it's a kit that VoIP apps are free to implement in order to integrate. Of course, there's an element of curation on Apple's end around which apps it lets on the store but mostly the question is with Microsoft - will they take advantage of this integration or not!Don't see why they wouldn't? And as others have mentioned, the soonest date they can implement this is 10.0 GM/final release date.