I have
N95-3 with 11.2.009 firmware and rotateMe does NOT work for me. I've heard others with same problem on this firmware and some people whose rotateMe stopped working after firmware update. I have the accelerometer plug-in. My rotateMe installs but I cannot open the application.
So I guess...don't update the firmware :P...that is, if you want rotateMe to work at the cost of everything that you get with the new firmware.