From Carolyn:
Many of our users have iPhones and one reported that some strange characters appear in SharePoint alert email messages when they are viewed on the iPhone. (These are email alerts set using "Alert Me" in a Discussion Thread).
Here is an example of the strange characters in the text: “I’m in the same boat as you. Bought one.. use it. But haven’t managed the hurdles – too much resistance. “ Does anyone know of a way to avoid this issue?