x in "C++0x"

В Dr.Djobb's Journal шутят по поводу даты выхода следующего стандарта C++:

The next revision of the C++ Standard, tentatively titled C++0x (the 'x' is a placeholder, intended to suggest that the revision will be finished before 2010, although some people like to remind us that "0x" introduces a hexadecimal constant, so C++0x really has to be finished by 2015), ...