They have launched no product.
They've successfully generated buzz because it's an incredible idea, but as we know from the infinite submissions to HN, "it's all about the execution," and the folks at Coin, Inc. haven't executed on anything yet.
They can make one helluva pitch, though.
Makes me think Google's search algorithm is more heavily influenced by social signals than might be readily apparent.
AND an analysis by ShareThis showed only 2% of the social traffic happening on G+, which makes me wonder if Google's search results are being influenced by other social platforms.