A key feature in TeamSupport is the ability to "subscribe" to a customer.  To do this, simply click the Subscribe button next to the customer name on the right.  Anytime something changes with the customer, such as a new ticket or a new action to an existing ticket, you will be notified via email which will contain the updated information.  This is an invaluable tool for SE's (sales engineers) and support managers to keep track on key accounts.