Early builds in testing of the next-generation Mac operating system, OS X 10.9, point to Siri and Maps integration coming to Mac computers next year, according to our reliable sources.These sources say that early builds of OS X 10.9 integrate Apple’s Siri voice command software much like Apple’s newest iPad models running iOS 6.It is currently uncertain if Siri will be available, if it goes past the early testing stages, in OS X 10.9 for all users. Siri on iOS devices is tied specifically to certain, newer iPhones, iPads, and iPod touches, so it is possible that Apple will make a similar decision for Siri on the Mac. However, Dictation, which