As for software elements that are completely unique to the Kin, the list is long.

ENGADGET: Microsoft Kin: everything you ever wanted to know

So long as there is little geographic mobility, clusters of networked kin and friends develop, putting an advantage on being nice.

WSJ: Have We Evolved to Be Nasty or Nice? | Mind & Matter

His next-of-kin, Shaun Linton, was with him when he passed away at Antrim Area hospital and said his long-time friend would be sadly missed in his hometown of Larne.

BBC: John McKnight - survivor