[RWebb]

"One answer may lie in biology. Scientific studies have shown that people generally find women's voices more pleasing than men's. 'It's much easier to find a female voice that everyone likes than a male voice that everyone likes,' said Stanford University Professor Clifford Nass, author of 'The Man Who Lied to His Laptop: What Machines Teach Us About Human Relationships. 'It's a well-established phenomenon that the human brain is developed to like female voices.'

One notable exception has been Germany, where BMW was forced to recall a female-voiced navigation system on its 5 Series cars in the late 1990s after being flooded with calls from German men saying they refused to take directions from a woman. An Apple spokeswoman declined to comment on why the company gave Siri a female voice in the U.S. Nor would she say why Siri speaks like a man in the UK, where iPhone 4S owners have swarmed online forums to request a female voice instead."