This NetBeans plugin is working very well for my projects: http://plugins.netbeans.org/plugin/46054/arduino
For the plugin work properly, the original IDE must placed in a path without spaces, like c:\arduino-1.0.5.
I'm currently maintaining this opensource project. Help or troubles, please contact me.
I'm trying to use precisely that plugin. I have followed the instructions inhttp://arduino-netbeans.googlecode.com/files/Install.pdf
After that when I try to build a simple test sketch I get this message
avr-ar rcs lib/core/arduinocore.a
avr-ar: lib/core/arduinocore.a: No such file or directory
make: *** [lib/core/arduinocore.a] Error 1
BUILD FAILED (exit value 2, total time: 250ms)