Don't ya just love how this has pretty much become a war within a page and a half?
Gotta love it...
I've already made my point, but really, while I respect NerosDevil's opinion, the Nero - Vergil link theory is pretty much dead, the DT's aren't similar enough to warrant the argument either, fact of the matter is, something as powerful as Yamato NEEDS a new master, so rather than being dormant for all eternity, it's going to seek out the next best master.
I'll admit the triggers do have SOME resemblance to each other, but that's because of the simple DMC3 Dante Trigger, at such a young age and such a low point in demonic development, the Devil Arm controls the character's trigger, remember how Dante switched forms in DMC3 depending on which weapon he had? It was the same with Vergil and IS the same with Nero, Yamato has a certain...Essence, if you will, that manipulates the demonic energy of the devil trigger, so of course Nero's trigger will have SOME form is similarity to Vergil's.
I'm afraid I agree with Dante Aseroth on this matter though, and I have done for a while.