Remembering back to the 2007 movie, at the end, Prime refers to Megatron as his "brother." There really is no followup to this, and we could have taken it either literally or figuratively. I can't find my copy of the Transformers movie prequel comic, but I'm pretty sure the first issue even says that they are brothers in the literal sense. So now, with Revenge of the Fallen, we find out that Optimus Prime is a descendant of the original Primes. Would this make Megatron a Prime?