So at my new job one of the platforms we use is S60 (Nokia phones, Symbian OS) and I am getting curious about it, as well feeling the need to help the team a bit from time t
I haven't coded for that platform in a couple of years. However the SDK is available at http://www.newlc.com/Nokia-Series-60-SDK.html
There si a nokia forum and knowledge base at http://wiki.forum.nokia.com/index.php/KnowledgeBase with code snippets at http://wiki.forum.nokia.com/index.php/Portal:KB_Code_Snippets
Depending at the development platform there are other SDK kits and instuctions