Woo hoo! I was there! HUGE crowd is putting it mildly. I'd say 160 thousand is underestimating -- I'd say over 200K. We (Dan and Geeta and I) were closer to the back than the front, and people were packed TIGHT! We could hear pretty well, but could see the jumbotrons only intermittently. It was fun, though, and everyone was good-natured and polite. That was the point, right? Metro was also jammed, but we managed to get home OK. Not something I'd want to do every day, but I'm glad I went.