Closing the application via Task list
User should be able to close all applications via device's Task list. Task list is opened by pressing the Application key for a while. Then, use can select the application to be closed and press C key. This is important from the usability and user experience point of view as applications running in the background may consume a lot of memory and battery.
Being able to close the application via Task list is a requirement in Symbian Signed. Application that cannot be closed via Task list, won't pass the tests and therefore cannot be Symbian Signed.