>>11
If you download the latest Clang binaries and compile the latest clang libc++ (easy to do), you can have pretty much ~100% of C++11 compatibility. I have it running right now on a Linux box while using
STROUSTRUP C++11 book.
The GCC compiler is C++11 compatible itself but the GNU's libstdc++ is still far away from clang libc++. And I've heard that Visual C++ supports it ~100% too.