I've been playing around a bit with the new beta of the Arduino IDE and it has some nice features.
There is one really big ceveat when you decide to use it. IT breaks everything using WProgram.h, which is basically every sketch out there, including RF12.
This is because WProgram.h has been renamed to Arduino.h. But a simple replace of the name doesn't fix this. So there's a lot of work left if you decide to use it.
You can download the beta relase here: http://code.google.com/p/arduino/wiki/Arduino1