Of course, from what I've heard of that fight, it does not sound like it captured the epicness Bethesda seems to be going for with Skyrim's dragons...
I'd say that, yes, dragons can be killed with arrows, I'm not sure how effective they'll be against dragons, but I'd imagine they can be killed by any weapon that could kill a normal enemy, if they can be killed with swords and spells, it wouldn't be fair to count archers out. Though I wouldn't be surprised if the most effective way to kill dragons is with shouts, after all, there must be a reason the Dragonborn is the only one the dragons fear, a rare ability which you're character possesses being the greatest threat to them seems like a pretty good reason.
I'd say that, yes, dragons can be killed with arrows, I'm not sure how effective they'll be against dragons, but I'd imagine they can be killed by any weapon that could kill a normal enemy, if they can be killed with swords and spells, it wouldn't be fair to count archers out. Though I wouldn't be surprised if the most effective way to kill dragons is with shouts, after all, there must be a reason the Dragonborn is the only one the dragons fear, a rare ability which you're character possesses being the greatest threat to them seems like a pretty good reason.
that was what i was thinking. oblivion had the problem of having guards that could easily have gone and closed oblivion gates walking around all over the place doing nothing.......kvatch guards were the only ones that were low level to begin with all the rest of them were significantly higher. if it turns out that i can kill dragons easily at level 5 or 10 and a bunch of guards are just standing around doing nothing and waiting for me to do everything talk about messing up the game world..........im sorry but that is just crappy game design. these are supposed to be super tough enemies if simple bows and arrow or swords or a few damage spells can kill them then why would anyone in skyrim be afraid of them at all.