Being a Open Source developer, i know a bit about 
Open Source code. This is the first time i heard Open Source concept used besides software. OpenCola is the first of its kind. Now you will be able to make your own Cola. Probably this is the first recipe that has been released under GNU license
In future i would like to see other people making their stuff Open Source. Because i believe that if a product is for the community then it should have equal rights to modify and contribute for that product. Open Source is the way to go for the future.
Some interesting links that i found on this topic.
http://www.colawp.com/colas/400/cola467_recipe.html
http://everythingelse.wordpress.com/2007/02/18/opencola-open-source-coca-cola/