So now after the Tech.Ed announcement the Team Rooms are available :)
They are not just a chit-chat tool for conversations into the team. They are an invaluable tool for collaboration.
First of all, we can configure it as a broadcast messenger for certain events
It is possible to tag a certain User Story, or a specific build to talk about.
But the best comes to the specific collaboration tags: @ and #.
The @ tag is for tagging a user:
The # tag is for mentioning a specific work item:
After clicking on the hyperlink a new tab is going to be opened with the required work item.
All of this could seem pretty silly, but I can ensure they add some value to the team work, less overwhelmed by emails and better communicating among the members.