Hi, I have an assert when exiting my application using the serialization lib of boost 1.38. BOOST_DLLEXPORT static T & get_instance() { static detail::singleton_wrapper<T> t; // refer to instance, causing it to be instantiated (and // initialized at startup on working compilers) assert(! detail::singleton_wrapper<T>::m_is_destroyed); use(instance); return static_cast<T &>(t); } The same code doesn't assert on windows XP so I guess that's something messy with static allocation on the iphone platform. On the iphone, the load/save code works well as long as it's not called when the application exit. As far I as I understand, I need to move my exit code somewhere else, when those singleton are still allocated. Can somebody confirm that? Or maybe I'm missing something... Any feedback warmly welcome! thanks