Here goes. On some websites I visit, when I have multiple tabs open, if I get an e-mail, or a PC, or other action happens, an alert shows up in the tab. That way, when I am looking at multiple sites in the same window, I can see on the tab that some action has occurred. I think it would be cool if there was some functionality to give notifications of changes in XF in the tab.
Again, I have no idea if I explained this well, or if it makes sense (or if this is already planned). If anyone needs clarification, I will give it a shot.