Sonar aims to be an accessible GNU/Linux distrobution to people of all needs. Its goal is to bring awareness of Free accessible software to people that depend on assistive technology. Sonar GNU/Linux doesn´t replace proprietary operating systems, but is an ideal alternative. Some differences exist between GNU/Linux and proprietary operating systems, and you may encounter a small learning curve when understanding GNU/Linux´s structure and system. However, there are many similarities to your current proprietary system and Sonar offers new technology with unparalleled quality.
Source: Corporate website