It would be awesome if in addition to the message that's set when notifications are queued by notifications_team ("x other users have been notified"), there were an "undo" link that would delete these pending notifications from the queue. Additionally, I think this feature would be of general interest and could be rolled into a module separate from notifications_team, but we can think about that later.

I'm using OA beta8, which includes notifications_team. Users are complaining of getting some "SPAM" from their teammates, who probably generate notifications without realizing it when they update nodes and such. This would be one method to alleviate that.