I think it would be great if in the Summery you can also see all issues filtered on versions. If you have a project and you planning severel versions you want to see summery for Tracker, Priority, Assigned to, Category based on a specific Version. Now I see all issues for the whole project but if you, let say, push issues forward to another Version, you don't want to see Summery on all issues in all versions ata the same time.