For a very long time now, druids have been bemoaning the "feral range bug," which makes it so that feral special attacks sometimes don't work, even though the regular auto attacks are fine. I've always thought this bug caused special attacks to have a shorter range than auto attacks (and I wasn't alone), but some videos demonstrate that the bug (as shown above, and also here) has to do more with positioning than the actual range between the druid and the target.
I play a feral druid, and I can't say that I've noticed this bug very much, but I tend to shy away from PvP situations where it would be likely to show up most -- mainly because I find feral druid PvP to be very difficult (though I keep trying now and then). Perhaps this bug is one of the reasons for that, but everything is just too fast-paced for me to see?
In any case, Vaneras on the European WoW forums responded to a poster in order to let us know that the developers are indeed aware of this "concern," and they ... well... that's it. They're just aware. Nobody knows if they'll actually fix it or not, though I would assume they will at some point.
In addition, Vaneras says the developers are aware of the some graphical imperfections in some druid feral forms, and they also "like the idea of new graphics and models for the Druid forms, however there are no plans for such in the immediate future." The key word here is "immediate," which implies that the not-so-distant future might be quite different! Is there hope for feral druid graphical updates in Wrath of the Lich King, perhaps?
[Update] I just got back from testing this in PvP, and sure enough I found my special abilities weren't landing, even though I was on top of my enemy. Click on the link below to see a video of this bug in a PvP situation.