I have yet to see any evidence that the Flat UI folks violated any copyrights. It doesn't look like the Flat UI guys made verbatim copies of any of LV's art, n

I have yet to see any evidence that the Flat UI folks violated any copyrights. It doesn't look like the Flat UI guys made verbatim copies of any of LV's art, nor does it look like they took LV's art and altered it to hide its origins. It looks more like someone came from the viewpoint of "let's make some icons like LayerVault's," which may or may not be an IP violation, but it certainly is not a violation of copyright. If LV knows differently, they certainly don't appear to be interested in telling us how they know, hence the pitchforks.