This whole thing with Hinata was pathetic in a lot of ways. Pathetic in that she died so easily and so selflessly, and pathetic in that her whole purpose in that scene was to be canon fodder.
I think the debate over whether or not Hinata is still alive is mainly soming from the fact that that big sfx on the page where she was killed wasn't translated. If we'd read "STAB" in giant black letters as we were meant to, it'd be harder to hold on to the hope that she might still be alive.
There's still a few possibilities that she could still live: Sakura is OK and could come and heal Hinata, as could one of the Katsuyus. Neiji is on his way--which HAS to be on purpose for some reason. It's his duty as a member of the lower house to protect members of the upper house, and his duty to protect Hinata specifically, so he may do something or another to trade/sacrifice his own life for hers. (But let me admit my bias here and hope that doesn't happen as Neiji is a much more important character than Hinata, in my honest opinion.)
Poor Hinata, she hasn't recieved an ounce of character development in the past 100+ chapters. The fact that she finally admitted her feelings to Naruto pretty much confirms to me that she IS dead as prior to this, Hinata couldn't so much as
talk to Naruto. For her to finally get such a big moment, it's a hugely bad sign.
IF post-time skip she and Naruto had ever once had a proper conversation,
something, I would be inclined to believe that she isn't dead and NaruHina 4eva, etc. But, that never happened. They even went on a mission together and that didn't happen!
So the way I see it, she was nothing more than canon fodder meant to make Naruto angry enough to go nine-tails. Kakashi may have been killed, and Jiraya definitely was, but none of those things hapened in front of Naruto. Not only was Hinata the first (good) person to die in front of him, but she was also the first person to ever tell him she loved him, so put those two things together and you finally have enough rage for Naruto to let go enough to transform.
Naruto being able to control the fox is the final thing necessary for him to become the strongest character in the series. Killer Bee and the other tailed beast hosts can do it, so Naruto needs to be able to do it as well. If Kishimoto really wants to get cheap about it, Naruto will even get a Kyuubi transformation mode where he looks like a human but has use of all the fox's chakra--like
YuYu Hakusho's Kurama. Sage mode is cool and all, but the only difference between normal Naruto and regular Naruto is the eyeshadow.
![bigrazz](emoticons/beigebigrazz.gif)
As a shonen main character, he needs a cooler transformation.