Currently the only activity tracker is found by clicking the drop down menu by the home button, where you can see all of the activity that happens for the entire company's Aha site. It would be awesome if instead, each idea could have activity trackers, so every time it moves statuses, or when a feature is promoted, or for anything, there would be a list of activity for that idea. This will not only help for organization, but to be able to communicate with others within the company, why the status changed, or where the idea was moved to.
Thank you for the note. This is currently possible for records throughout Aha!, including ideas. On the idea details page, click Actions -> History to see a list of changes specific to that idea.