The Native Module Interface (NMI) SDK allows you to plug in specialized Symbian OS APIs into m. The NMI SDK explains - illustrated by two examples - the basic programming concepts of Symbian OS and the m runtime environment. With this SDK you have not only a powerful way to extend m to your very special needs, you have also an easy entry point into the complex field of Symbian OS programming in C++. The free NMI SDK can be downloaded here.