He inherited the whisker marks on his face most likely from the nine tailed fox since Kushina was it's host.Kurenai's father had the Rinnegan or was that just a wierd illustration? That's what it looked like to me. Maybe when Tobi talked about "taking out the Rinnegan" he meant Kurenai and Asuma's son?
Madara having his arm ripped off was awesome. The only thing that came to mind when I saw that was Izanagi.
On a side note...Everyone always says the "whiskers" on Naruto's cheeks were from having the Nine-Tails in him, but he had them before that. Anyone know the deal with the whiskers?