[@Mahz] That certainly helps. I would propose moving ghosts to the end of the list, if that's simple. Having them at the top is counter to the ghosted person's intentions (draws attention a bit), and it doesn't help the user see who is online easily. 

On mobile, the friends list is still really cluttered from the text. 0-12 hrs ago is forced onto 4 lines for me, as opposed to the normal 1-2 lines.