Apple has removed Google's products from its iOS operating system in the past (Maps, YouTube) as standard features, increasingly relying on its own features. Apple was forced to issue an apology for its own Maps application, as it was not up to Apple's incredibly high product standards, and ultimately led to the ouster of former iOS chief Scott Forstall from the company.

It's unclear what the financial relationship between Apple and Twitter is, as Apple does not break down results outside of hardware and software revenue and Twitter is not public yet. Speculation surrounding the San Francisco-based social network suggests the company could go public perhaps later this year or early next year, with a market capitalization of perhaps as much as $15 billion.

While new iPhone features such as the impressive the fingerprint technology, known as TouchID, and the new A7 64-bit chip will receive the majority of fanfare and attention from the press, Siri's upgrade should not be overlooked.

Otherwise, Google and its shareholders may be "searching" for an answer that's proved elusive so far.

-- Written by Chris Ciaccia in San Francisco

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