Yes and no. Certainly for new projects it is increasingly popular. However, there are still barriers to adoption that are practical, not political, that others haven't mentioned. There are a lot of commercial C++ libraries that use ABIs from ancient compilers that don't properly support the features seen in Modern C++, and a lot of companies rely on these libraries. Sun Studio on Solaris for example can't work with Boost without the use of STLport, but any 3rd party commercial library you want to use will require Sun's version of the STL. Same story with GCC 2.95 and Redhat Enterprise Linux.
