Spoiler
So, those of us who have completed the main questline or most of it know that we get a shout to "Call Dragon" Odahviing the dragon we captured. We get a brief cutscene for riding him but can't actually control it. After completing the story we are able to summon him to fly around and blow fire at our enemies, but we never actually get to ride him ourselves, I was very disappointed. I don't see why sandbox dragon riding wouldn't be possible (unless I'm missing something and it already is) the animations are there.
I think riding dragons will be the first thing I look into when the Creation Kit is available. Who wouldn't want to ride a bad-ass dragon?
I think the controls could be similar to the horse, E causes the dragon to land (if possible) and let you off. Mouse click could make the dragon blow fire or ice.
As far as balance is concerned it probably wouldn't be, riding and controlling a dragon and all, but it would no doubt be loads of fun.
