I went to the last Drupal Camp Central America 2010, this event was in Guatemala on June 25/26. I did two lectures about Drupal Themes + 960 Grid CSS and Migration Tips from other CMS to Drupal.
This event was 100% successful with people from Nicaragua, El Salvador, Belice, Mexico, Costa Rica, Colombia (me) and off course Guatemala.
Also I visited the beautifully city Antigua, Guatemala . Some pictures at http://picasaweb.google.com/yersika/Drupalgt10