Hi Edward,
If you click on the
article in Cecile's original post, please scroll down to #4 for the new information that was added for the Jan2013 release
Previously, field display names could only contain the letters a-z, numbers or a dash. So, this screenshot shows how the symbol "&" can now be included. Given that we referenced support for different languages, I can see why this causing so much confusion. I'll work to this article updated to be more clear.
Thanks for the feedback, everyone!
Ei-Mang