Facebook launches ONE mobile site

Social networking site Facebook has announced the launch of a single mobile site m.facebook.com to replace all versions of its mobile sites. Previously, Facebook built multiple versions of mobile Facebook: m.facebook.com for less feature-rich mobile devices and touch.facebook.com for touch devices.

Our new site is powered by a UI framework based on XHP, Javelin, and WURFL, a detailed database mapping user agents to device capabilities. This enables us to very precisely target experiences and features to thousands of different devices.

This mobile UI framework allows engineers to focus on building their product and not on supporting device edge cases. Rather than directly writing HTML, CSS, and JavaScript, our product engineers write XHP and use these mobile components to build new features.

One Mobile Site to Serve Thousands of Phones [via]