According to freesoftwaremagazine.com, the adoption of Open Source Software (OSS) results in savings of over $60 billion per year. But wait a minute, what is OSS? Open Source Software refers to any software subjected to a license that makes the source code available to everyone. A good example of OSS is Drupal in all its forms, including Drupal Mobile. You can change the source code or even change its mode of operation. However, this does not mean that it does not have any legal issues, some of which are explained below.