Worse, none of us bothered to check the source article.
Surprise. It doesn't exactly say that Samsung is going to come out with a Jet Black.
Instead, it seems to say that Samsung will put their Onyx Black and a matte version of it on the Galaxy S7, in order to compete with Apple's Jet Black and matte black.
I've got news for you - the S7 already comes in Black Onyx flavour and always has. The article would have made a good April fools joke but I suppose the joke is already on all of us who have posted in this thread.