Andrei Alexandrescu: >Some of them may be dropped.< My suggestion, for D2, is to assume all minimally serious D2 programmers will have both Phobos2 and Tango2 installed. So Phobos can contain core functionality and Tango the utilities, higher level things, more data structures, etc, reducing the overlapping to low levels. Someone recently has said a comparison: they may become like the STL and Boost of C++, usually both used/installed.
Bye, bearophile