Except that, in over 50 years of spaceflight, no one has really cooked in space. They just reheat frozen food in a microwave, or canned food in an electric oven or add hot water to dehydrated food in plastic bags. Their menu consists of frozen prepared meals, canned food, dehydrated food and occasional fresh food consumed raw (fruits & vegetables delivered on resupply cargo flights). Bread is usually in the form of tortillas to prevent floating crumbs and also they have a longer shelf life. Salt is in liquid form (a brine) that is squirted onto the food.
In a few of the other forums I frequent these knives have come up in discussion before; some people had even used them.
For the most part no-one knowledgeable seems actually impressed with them.
I think the concept (of vitreous steel) is encouraging, but there's really not a lot to go on as to why this material makes a better material for knives. They seem to imply that it is both more resistant to chipping *and* harder.
Personally, I don't subscribe to the "harder is always better" theory for knife steels anyway.
One of the Mafia should buy one and evaluate it.
Are they made in the knife manufacturing facility aboard the ISS? If so, hell's yeah! I'm in!
What? They're made here on earth? Never mind. :-p