Though how much use the flight mode will be to cabin crew on an aircraft is of some doubt because they only have to see you with your phone on and they can insist that you switch it off, whether it is transmitting or not.
Anyway, if you want to do some of these ungodly things to your phone, pop on over and give the software a try. Remember that this is beta software, it may have bugs, and this software is designed to reset, reformat and restart your phone.
You have been warned.