Amazon sold 306 holiday items a second The company, which is opening fulfillment centers and ratcheting up its video-streaming service, still sees e-commerce as a land grab and is unnerving rivals as it puts cash flow before profit. With an estimated 28 percent who use their own personal electronics on the job, companies like Research in Motion, Red Bend Software and VMware are building software to help employees seamlessly use their own devices for work tasks. Though the Mountain View company's Android software has become the most widely used smartphone operating system, Google probably lost market share in mobile advertising last year as competition increased from social networks such as Facebook and Twitter.