Mobile Apps Revenue to Triple in 2011

World-wide, revenue from mobile apps is expected to triple this year to $15.1 billion, including paid downloads and advertising revenue generated by free apps, according to research firm Gartner Inc.

Besides the potential of making money directly from such creations, more and better apps can help devices powered by Google's Android operating system continue to gain ground on Apple's iPhones and iPads. It's all about the ecosystem, says Nokia CEO Stephen Elops.

Google to Boost Staffing for Development of Mobile Apps - WSJ.com (subscription required)