Rumors of Apple's supposed intent to port its iOS digital personal assistant, Siri, over to the Mac have persisted for years, and intensified lately. Back in November 2012, for example, 9to5Mac claimed that Siri would be baked into OS X Mavericks.
Mavericks is here without Siri and the feature is nowhere to be seen in Yosemite, which looms on the horizon. Of course, the Mac's Dictation feature, powered by Nuance, doesn't count as it's simply speech-to-text with no real intelligence.
That being said, it would seem that the Cupertino firm has been quietly researching ways of enabling Siri on the Mac. Case in point: a newly discovered patent application filed back in February of this year which details how Siri for Mac might function, what features it could include and how it should improve your desktop productivity...