info: http://www.google.com/ideas/projects/arms-visualization/ link to site: http://workshop.chromeexperiments.com/armsglobe/ github: https://github.com/dataarts/armsglobe
Looks like it has been updated for 2011 data here as well as a new weapon type 'unclassified'
edit: almost forgot, here's a great writeup by Michael Chang on the project http://mflux.tumblr.com/post/28367579774/armstradeviz