In his latest post David Coallier asks the PHP community how they use namespaces (to be included in the upcoming PHP 5.3 release):

Quick and simple question to the community. Before asking it, I'd like to remind you that this is not a bashing contest nor a competition to say why you don't like the namespaces implementation. What I would like to ask you all today is, how do you use them? File structures, Directory Structures, Naming Conventions you use, or even, have you used them at all? Are you planning on using them? If yes, why? If no, why?

Comments on the post range from an idea of "libraries" of code out to complaints on the operator chosen and others pushing them aside and not using them at all.