Agreed. Skepticism is not only necessary but welcomed. But some of the comments are painting these guys like they are clowns. A bit of digging shows they've been working on this in some part since 1999 and that they were able to secure funding a few years back. And since then they've brought on other highly credible people and have in fact have been able to build this material awhile now.

This isn't some grad students that just stumbled upon something they mistook for something else. There's a really good chance this is legit and that lots of physics will need to be looked at.