I would like to see the capability to have live data updates in ArcGIS products. Say you have a database that multiple individuals have access to, and you are viewing a feature class in your ArcMap document. At the same time another individual is making updates to that same feature class. It would be nice if you had an update window that will push out an alert saying your feature class has changed, or to automatically update it on your map as changes are made. Also within the update window you could set watches on different items that you commonly use. So if any of those items have changes you will get a message in your window.