Did you know:
It's easy to start the Real One Player with an "RTSP" URL from J2ME.
Just use platformRequest.
e.g.
platformRequest("rtsp://server.com/sample_50kbit.3gp");This works because Real One Player has a recognizer for the scheme "rtsp".
So it should be possible to launch your own native Symbian C/C++ application from J2ME if you register your own recognizer for a scheme of your choice. But haven't tested this.
By the way: Does anyone know why the native Real Player and the native browser always want to connect to an access point even if the url contains localhost / 127.0.0.1? If someone has a solution for that: Send me a mail!