
1 answer
Why would you want that? I think many UI people would say this isn't a best practice. What problem are you trying to solve?
Are you using the console? You can have lists refresh - so if you have a list view for users where cases are assigned to them, this refresh can occur.
See this: (https://help.salesforce.com/HTViewHelpDoc?id=console2_push_notifications.htm&language=en_US)