Is this a cracked frame?
Yep, that looks like some pretty extensive cracking. 

I'm sure this is obvious to you, but do not ride this bike as the frame may fail catastrophically.



Update:

Sorry your three year old frame failed. I would not expect a full suspension frame to fail in that time. You may want to contact Rocky Mountain to see if they will do anything about it.

On the other hand, kudos to you for being able to ride the bike hard enough that you broke it :-)