The article Saving_application_preferences_in_Windows_Phone explains how to save app settings in WP7 using IsolatedStorageSettings. Following investigation from SB_Dev we find that WP8 promotes a new method using the ApplicationDataContainer class. This can have multiple instances (local vs. roaming) and seems quite an interesting and useful API.
There is nothing much on the Internet on this topic and I think it would be cool to have an example which covers this API in WP8 (probably as a separate article) and we'd rename the current article to WP7.
Does anyone have any expertise or practical experience with this, or who would like to gain it by writing an article on the topic?