It has been a while since I have done serious C++ work.  I am getting back into it a little (including Java and JNI L).  I was shocked and impressed when I ran across this presentation from Dr. Bjarne Stroustrup:

Says 3 million users (can not round to the nearest million)

http://www.csclub.uwaterloo.ca/media/C++0x%20-%20An%20Overview.html

http://www.open-std.org/jtc1/sc22/wg21/

http://www.research.att.com/~bs/