Visual progress in the task log
When you're monitoring a deployment in progress, you watch the task log growing as it's adding more content to the bottom of the page, but that requires you to keep scrolling the page.
It would be helpful if the task log page scrolled down automatically, or if there was some other way to keep the most recent update in view, so you can keep your eyes focused (quite literally) on one spot on the screen.
I think this would give a more "solid feel" to keeping track of the deployment's progress. When the pressure's on during a difficult/risky deployment, this can really make a difference.
Andrew Armstrong commented
Agree, I wish on the Dashboard page during its blue spinning circle, it had a progress bar underneath.