ObjC is a native language and a direct descendent of C, and powered the phone's built-in apps. JS was provided for 3rd party developers, who incidentally reject

ObjC is a native language and a direct descendent of C, and powered the phone's built-in apps. JS was provided for 3rd party developers, who incidentally rejected it. I wasn't aware of the SIM card running Java. I guess Java was good enough for that job since I never noticed any performance issues with the iPhone, unlike my Palm Pre which was plagued with them, and had a terrible battery life.