I have installed Mobile Extensions for Qt S60. Then i copied com.forum.nokia.templates_extensions.jar file into the Carbide.c++ plugins directory (for example D:\Program Files\Nokia\Carbide.c++ 2.0\plugins). Now i opened my editor and tried to use these template, i found following issue in template plugin.
1)Template for installer and sensor is missing.
2)Generally a template will generates required header and source file, but SysInfo API extension is not generating networksignalmonitor.h and batterymonitor.h files.
Although it is not mandatory to use template for using extension API, it is very useful if it will be updated.