pfft.. that was no teleportation... he just jumped towards kisame... his speed was so high that it looked like teleportation... I guess...
Anyway, like several months ago, I had this theory, that Naruto might be able to collect sage chakra in his inner realm, sitting still in his inner realm and collecting chakra, while running around in sage mode in the real world.
I got alot of criticism on the theory, but recently, we've seen proof of that it is possible to do the opposite of that, so maybe its possible.
But damn... his strength and speed is incredible using foxes chakra... just think of him using fox's chakra while in sage mode... he would have punched a hole through kisame and broken the whole wall that kisame was running on.