Maybe you could make the "another user updated it" msg more noticeable? Would placing it in the blue header section work? 

About tabbing: Yes, the tab should skip to the next theme, because collapsing a theme means we don't want to work/review it right now.

In our case, we only use Scrum for internal Tagged projects, not for external clients, hence granual company access doesn't make sense to use because we are all in the same company.

What we really could use is the ability to allow read only or read-write access, to invitees, for a specific project (kinda like pivotaltracker.com does). so that we can invite reviewers to join on a specific backlog, and they shouldn't be able to view other backlogs.

Also, the [edit] text could definitely be replaced with a hover or a tool tip.

For the color, delete, duplicate, move button bar, it could move somewhere else less obstructive, maybe lower right corner of the entire story row.

I am thinking of the following:

- being able to add users only to one specific backlog rather then the whole account

- add "view only" users, so that if team members want to view more data than what  is available in the printed cards, or see the whole backlog or future sprint planning.