Just found this URL (googling "Nuke Mecca"), and it's pretty cool. (It's on this page http://avideditor.wordpress.com/2009/02/26/yes-now-you-can-virtually-nuke-mecca/). It opens up google maps and you search for a place or go to it manually, and then you choose a weapon (various types of Nuclear Bombs and an asteroid) and nuke it. The tool shows the effects of the bombs, and you can choose to nuke a map, a satellite image, or a mixture of the two. Just thought I'd share, post your thoughts please.