People largely seem content with "boost::string".
I think that is a pretty bold statement as your proposal for boost::string was initially posted merely 26 hours earlier.
I've come to realize that now.
Perhaps this library should be bundled with the Boost String Algorithms Library, and reside in the boost::algorithm namespace.
My original understanding was the namespace meant beyond just algorithms. ...
I don't think it is a good idea to have the nothrow exception specification on either boost::string::from nor boost::string::to as the underlying mechanism (iostreams I would believe) or copy-construction of T or construction of String could throw exceptions. Nothrow simply cannot be guaranteed.
It seems obvious once you mentioned that. Quite embarrassing. Thanks, V.