The big thing with Apple’s latest technological marvel the iPhone 4S is of course the one thing everyone is harping on about, the Siri voice assistant. Apple purchase Siri last year and now that the iPhone 4S has come out to play toting Siri, the co-founder and CEO of Siri, Dag Kittlaus, has said his goodbyes to the iPhone making company.

According to the guys over at Pocket Now by way of AllThingsD, there were numerous reasons why Kittlaus decided on a parting of the ways with Apple and all were amicable and has apparently been on the cards for some time.

Kittlaus has been CEO of Siri since 2007 and before that he was an entrepreneur at the Stanford Research Institute and has even worked for Apple rival Motorola.

As for those reasons the CEO decided to leave Apple one is because his family resides in Chicago, and “a desire to take time off and an interest in brainstorming new entrepreneurial ideas.”

Word is the Siri CEO left right after Apple launched the iPhone 4S, but will his departure affect the future evolution of Siri on iOS, well apparently more than likely no, as sources indicate that “other key execs from Siri are expected to remain at Apple.”

There has been mixed appraisals of Siri on the iPhone 4S some good some not so good, but as Siri is still a feature in its infancy no doubt Apple will be looking to make the voice assistant work much better via future updates, until then Siri will be there to at least make you smile occasionally, or pull your hair out whichever is the case.

Of course Apple will need to get a move on with improving Siri on the iPhone otherwise Android will be catching up with their own voice assistant which was recently revealed called Iris.

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