Waterproof will be amazing safety for kitesurfing and surfing in general, quadcopters are super cool, but you don't want to drop one in salty water. There are already techie stuff for kiters, we use the Woo device and gopros a lot.
Most areas have a club to keep members under control (irresponsible kiting can be dangerous to people not in the sea, unlike surfing) ... our club is keen on getting Woos, GoPros, webcams, internet enabled wind-o-meters etc... Hope they decide to get one of these!!
Sounds good in theory, but in practice kites can move really fast when manoeuvring or doing tricks. No guarantee that the drone would always avoid you successfully. You'd have to stay aware of where it is and where it's going, which would probably interfere with your kiting significantly.
Most areas have a club to keep members under control (irresponsible kiting can be dangerous to people not in the sea, unlike surfing) ... our club is keen on getting Woos, GoPros, webcams, internet enabled wind-o-meters etc... Hope they decide to get one of these!!