After reading many, many topics about bear aoe threat being bad, I have come up with a few suggestions. And for the record, I do agree that bear aoe threat is lacking, but I also think it does it's job as "holds threat off the healer, but not a dps that is attacking the wrong target." Once again, I am not saying we do not have the capacity to aoe tank, but that our aoe ability is vastly inferior to the other tanking classes.
Adding in a new prime glyph of swipe; increases swipe damage by 10% (either passive or 10% addition on a bleeding target, which was going to be added into the Feral Instinct talent during beta).
Changing the current glyph of thorns; usable in bear and cat form (it could cost rage or energy, but mana would be ideal since outside of pvp feral mana has zero impact on anything besides rebirth and max mana for innervate).
My last suggestion would be to simply adjust the threat modifiers on the attacks a little, nothing drastic.