I finished the main quest today.
Oddly enough, once I leave the Throat of the World after going through the "congrats" dialog with Parthanaax, nobody I've talked to seems to notice that Alduin is dead and the dragons are no longer a threat. Not sure if I just haven't spoken to the right people, or if the NPCs just don't care. Kinda anti-climactic.
Oh well. I have a dozen or more side quests left to do but I'm not inclined to finish them. I'll call the game done and uninstall it. So many other games to play...