First came out of condensed mater from the observation of the behavior of supercooled lithium 6, producing a strongly interacting Fermi gas that behaves like a superliquid. The second came from nuclear physics with the observation of the quark-gluon "liquid" from collisions at RHIC.
It appears that a claim has been made that the holographic principle of String Theory can produce a description that mimic these two phenomena. So in essence, you have the convergence of condensed matter, nuclear physics, and string theory.
So does that mean that string theory finally has an experimental verification? Hardly.
Not to say that string theory has been proved. Clifford Johnson of the University of Southern California, the string theorist on the panel, was very clear about that. All the arguments about whether nature is composed of unimaginably tiny vibrating strings and multiple dimensions, and whether this will eventually explain the basic workings of the universe, are still unresolved.
Furthermore, we also do not know if there aren't any other better explanations, i.e. is the string approach really unique? After all, condensed matter theory already has a well-established line of formulation for the Fermionic gas. If string theory claims to have a more fundamental theory, then it will have to reproduce all of those other observations as well, and not just this.