No, MM7 does not have an outlook task bar (just an export option). You are correct about what I was looking for... and I still haven't turned up the perfect solution.
I did however stumble across one that appears workable and similar to what you suggested: OutLinker which adds in a toolbar to MM, and may be the best intermediary to go between them. It can let you add a task from your existing ones to a map, or create a new task which goes to the map and Outlook simultaneously. It also can feed in email/calendar items to MindManager too. I will keep working with this to see if it can be a more natural workflow between the visuals of MM, and the table/list oriented world of Outlook.