How to get a Bing Maps API Key
This article explains how to get a Bing Maps Key in Windows Phone 7.5
Getting Bing Maps Key
To use a Bing Map control in our Windows Phone 7.5 project, we need to have a Bing Map account at Bing Maps Account Center with a Windows Live ID. After the account is created, we can get the KEY from the account to use in our application.
Below are the screenshots shown to give an idea of the process, considering you have logged in successfully at the above mentioned site with your Windows Live ID.
The obtained key can then be used with a Bing Map control.