As a bit of a statistics nerd, this is my favorite thing after the event itself. Thanks for once again compiling the data into an easy to browse format.
Looking at the pixel counts and the pixels placed per hour charts for the top 10 users, it seems most of them had very little sleep over the 48 hours... Gotta admire the dedication.
Achievements are a cool addition, although it hurts my completionist soul that they're set up in a way where you can never get all of them... As for suggestions, maybe add a page listing all the possible achievements? And taking it one step further, how about global stats showing what percentage of users have each achievement?