The problem with the FN attribute is that you usually have an interface where you can choose the order of columns (e.g. First, Last) and also the sorting of columns (e.g. Last, First). In this case the information in FN is completely useless because you don't know which part of FN is the last and which is the first name.

So InfCloud completely ignores the content of FN, but when you create a new (or edit an old) contact if fills the FN according to settings in config.js for older clients ... there is clearly no "good" solution if someone ignores the RFC.

JM