Hope to see a round shaped one during the week ;-) I havent seen many that have a round icon in Facebook and other networks like I have. But it is very visible with a round picture in a row on all square ones. I read something about round design in general. It is not just for fun that popular (both web and gadget) design have rounded corners these days. By instinct, things with round and not so sharp and angled shape is not as frightening to us humanbeeings. The round shape of the icon also goes well together with my round face ;-) And by the way: I have got a couple of friends in FB just because of my round-shaped icon.