For a long time now, whenever anyone asks me about support for particular C++0x (oh sorry C++11 ) features in a given compiler, I've sent them to the list Scott Meyers maintains. The format is kind of strange because it's exported from a spreadsheet, but the information is invaluable.  If you'd like to see more compilers covered, try the wiki at apache. Scott does gcc and Microsoft Visual C++; the wiki adds compilers from Intel, IBM, Oracle, and so on. You  might be surprised to see the variations in coverage. Expect new versions to continue to add support as soon as possible.

Kate