I think I may have just figured out what this is about. Someone has been spreading a rumor that Pepsi contains pepsin (a digestive enzyme) obtained from the stomach of pigs. Go here and scroll down to Q68.
http://www.whatisinit.com/frames/frames/quest.cfm
Then click on that question which links to an answer explaining that this is total nonsense.
Today Im going to post this on the Indonesian blogs and websites that are trying to promote this rumour about Pepsi.
One of the dangerous things is that there are many in Indonesia who are trying to insinuate that Pepsi had added pork derived substances for the sole intent of disrespecting the religion of Islam.
Great Work!!