All by itself China illustrates the potential of the mobile Web, The Economist points out. Seventy-three million people, or 29% of all Internet users in the country (the total number, which recently surpassed that of the US, is 250 million), use mobile phones to get online, and that number grew by 45% the first half of this year. Some 600 million people in China (about twice the US’s total population) are mobile phone subscribers. But that’s just China (“just”!). “Opera Software, a firm that makes Web-browser software for mobile phones, reports rapid growth in mobile-web browsing in developing countries,” The Economist reports. “The number of web pages viewed in June by the 14m users of its software was over 3 billion, a 300% increase on a year earlier.” Russia, Indonesia, India, and South Africa led that growth. The articles gives some examples of how very useful mobile-based transactions are in third-world countries.