More from GlobalPost: Steve Jobs authorized biography coming out October 24
"I'm going to destroy Android, because it's a stolen product. I'm willing to go thermonuclear war on this."
Jobs vowed to avenge what he described as Google's "grand theft" of Apple's rival mobile operating system, iOS.
"I will spend my last dying breath if I need to, and I will spend every penny of Apple's $40 billion in the bank, to right this wrong."
Apple is currently involved in lawsuits with a number of smartphone manufacturers which use Android software, reports the BBC.
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Apple and Google previously benefited from a close working relationship, the BBC says, with Google chief executive (now chairman) Eric Schmidt sitting on Apple's board.
However, Schmidt was forced to resign following the acrimony that erupted with Google's launch of Android, 10 months after the iPhone's release.
Other insights in Isaacson's book include Jobs' life-long interest in alternative therapies and lifestyles - he reportedly named Apple while "on one of my fruitarian diets" - and his regret at having delayed treatment for the pancreatic cancer that eventually killed him.
Jobs sought to treat the disease with macrobiotic food and spiritualist sessions rather than having an early operation that might have improved his chance of survival, Isaacson told CBS News.
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