You can also add custom alert sounds such as your preferred weather forecast radio station in the list of alerts.
Written by one of our most recent graduates, this was his Windows Phone 7 app leading up to graduation. It can be seen as the root of the thought process that ultimately led him to creating astrolope. The technical details are included, but not very user friendly. The main ideas are explained in this introduction.
In the links below you will find more detailed descriptions of the