The quadcopter is a piece of the proverbial to fly. By its very nature its incredibly stable compared to the choppers. The main problem is still trying to avoid the temptation to boost the throttle and watch it go straight up and out of radio contact . I've just upgraded the camera on it too but frankly sonny boy has been much more interested in his bike, his football and his Lego this summer.
I, on the other hand, have just scored myself one of these;
http://www.hobbyking.co.uk/hobbyking/store/__38126__Walkera_V450D03_Flybarless_Helicopter_with_6_axis_Gyro_Mode_2_RTF_.html
from evilbay.
Of course, this is just between you, me and the DangerDogz. No need for wifey to know yet. I've just got to figure out a way to collect it from its present owner in West Bromwich and smuggle it into the house