A salesperson demonstrates the Apple iPhone 4 in New Delhi, India. While mobile device use is growing rapidly in emerging markets, Apple's current product line may prove prohibitively expensive for many consumers.
In this Oct. 20, 2012 photo, people line up to enter a newly opened Apple Store in Beijing. Exxon has once again surpassed Apple as the world's most valuable company after the iPhone and iPad maker saw its stock price falter.
Steven Sinofsky introduces a new Microsoft tablet computer and Windows 8 software to the media in Shanghai on Oct. 23. The former president of Microsoft's Windows division has since left the company.