Apple released its first iPhone a decade ago, which featured one of the most innovative touchscreen technologies ever seen.

But a controversial new book claims that Apple's smartphone was close to having a physical keyboard.

The book suggests that Phil Schiller, senior vice president of marketing at Apple, insisted that the device had a physical keyboard.

It says he wanted it to be in line with the BlackBerry devices that were popular at the time - although Schiller has since denied the claims.

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