Mobile devices are becoming ubiquitous in the world, with 87% of the global population owning a mobile phone. While standard phones still dominate mobile sales, smartphones now account for 31-32% of handsets sold. The number of iPad users in the US is expected to rise 90% by 2012. Drupal can integrate with iOS applications through services like the Drupal iOS SDK, which allows iOS apps to communicate with Drupal using Services and perform functions like saving nodes, updating comments, and saving files.