BoostDC is project-outsider by design.
We just try to union all created DC++ client in common library, except a small number of architecture features:
 * Common component architecture based on event-driven framework (current state - ZeroC ICE).
 * API for write plugins.
 * Code split to Backend (client DC++ library), and some number of Frontend - GUI from another projects, adapted to BoostDC library.

See Wiki for details.