Stuey - 1:27 pm on Feb 14, 2014 (gmt 0)
Couple of points from a newbie here (I've just added my new Facebook website page):
Demographic targeted make a big difference? Mine is students mostly in Unis, so I'm still thinking FB fairly strong there. Slightly older, still use laptops more etc.
On the Laptops v Mobiles etc: again a student group would be more likely to remain on laptops or possibly bigger formats such as tablets (essentially smaller versions of laptops).