I always call it the \"arrow operator\", but I\'m sure it has an official name. I quickly skimmed the C++ standard and didn\'t see it mentioned by name.
I've heard it referred to a few different ways, was never sure any one in particular was more official than another.
and I'm sure there are others. personally I'm less concerned about what its called in a book or an official spec and more concerned that people know what I mean when I refer to it, so in my opinion "arrow thingy" is the best name for it since its the easiest to understand clearly what is being referred to.