Case Feeds is the new way to work with Cases in Salesforce. It is a cut down version of the Console in Service Cloud. Other objects can now have a Feed View.
- Help for Case Feeds https://help.salesforce.com/HTViewHelpDoc?id=case_interaction_setting_up.htm&language=en_US
- Case feed is great for Cases that have a lot of back and forth with the client. They may not be good for cases with very detailed fields.
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The use of topics is up to you, until they become more useful. See Record Topics.
Set an email template to use as the default template to use in Case Feed emails. A very nice option.
Advanced Setup / Dev
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