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Many of these features — Messages, which let’s you send SMS or text messages to cellphones and other mobile devices; Dictation, which lets you, well, dictate text into some applications such as email; and the “Game Center,” which groups games together — come from the firm’s iOS, the operating system for the iPhone and iPad. The Dictation feature is particularly useful: it requires no training and is rather accurate. (Proofreading is advised, however, to avoid embarrassing mistakes. Trust me.)

The conclusion I would, with respect, draw from the Mountain Lion announcement is that Apple is moving toward an integration of its desktop and mobile computing environments. As was asked here last week with Microsoft Windows, might Mountain Lion be Apple’s “last” desktop-only OS?