I'm well on my way to 3000 points of Wolf Clan Dwarves, and I'm happy they corrected the movement for these guys, and the armor and point costs. It could be worded better, I agree, but it is inferred that the whole army moves 3", except the Desert Wolf Warriors at 4"! Makes for a very interesting army to play.
Regarding the Dark Tusk Ram Attack: I'm pretty sure it is only on a charge that they get this attack. If the model is already in CC, it does not get this, but sweep then can come into bear. Sweep is cool, but can ONLY be used once you are in CC, not on a charge.