When we do our Iteration (Sprint) Planning, we first schedule our items and then sequentially go through them to blow out the task and acceptance test detail. It would be great if we could just page through the stories in the iteration from the Story Planner page so that we could avoid the steps of returning to the main page and then popping up a new window for the next item down. Having 'Next' and 'Previous' options right on that popup would allow us to jump forward directly in that same window.