Once you have got your application up and running on a phone, you might want to share it with others. If you want to sell your application, you need to get it Symbian Signed. Symbian Signing allows you to access the more sensitive capabilities of a phone, and it also means people can install your application on their phone without security warnings. See The complete guide to Symbian Signed for details about the Symbian Signed options and the steps you need to take in order to get your application Symbian Signed.