TURBO- Unless something is wrong with your phone or your returning it. There isn't a reason to flash the SBF. It doesn't do anything to make your phone better. It is simply a recovery tool.
All it being released does is open the door a little further for the developers to start building ROMs and themes for the X2. Because they can get into things and not have to worry about screwing anything up since they have the SBF to fall back on.