Sorry if this is a silly and/or stupid question but... Will there ever be, or would it even be possible to have a PHP.NET? Or have I got the wrong end of the stick?
I would say that it is unlikely as that there is ASP.net, but I would not say never because of Python.NET or IronPython. There is already one attempt called Phalanger. From the looks of the official wiki, its a serious development effort.