The coolest thing was speed climbing imo. Watching them flying up the wall in 6-7 seconds, crazy. Hard to believe they're not getting hoisted up by their safety rope!
Skate boarding was kinda dull, nice to see Tony Hawk and Snoop but it's just not as exciting as snow boarding. You can do a lot more with the board tied to your feet and no concrete to land on :)
Breakdancing, missed most it. Just saw one routine, felt rather off. What's next popping and locking at the Olympics ;)