I'm on Team LayerVault here. Let's be honest, there's huge resemblance to LV's style - and I think the only reason a lot of designers are taking Designmodo's side is because they had the DMCA put on them, and so were made to look like the victims.
I don't think it's a copyright issue, though. I do think designmodo has something to answer for, but a DMCA takedown notice is not the (legally) appropriate avenue.
I'm on Team LayerVault here. Let's be honest, there's huge resemblance to LV's style - and I think the only reason a lot of designers are taking Designmodo's side is because they had the DMCA put on them, and so were made to look like the victims.