Google Now and the speech-enabled search features are only found in Jelly Bean, and the Nexus 7 is the only way to get it for now, though it's weeks away from arriving on Galaxy Nexus phones.

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But we know which approaches had the biggest commercial success: search engines, speech recognition, machine translation, word sense disambiguation, and other technologies.

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Mountain Lion will contain more than 2, 000 new features, including iMessages, speech-to-text dictation and predictive "smart search" in the Safari browser.

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