It's called HealthKit because it's basically a software development kit. The GUI is clearly more of an afterthought and a way to keep the settings from getting buried in the already packed settings app.
I think Apple is setting the stage for someone else to come out with an excellent virtual personal trainer app. Personal trainers are one of the reasons that the wealthy are more fit than everyone else. This could be a big deal for first world health.
After using a HealthKit enabled exercise app and contemplating the potential benefits from HealthKit enabled gadgets, I am beginning to think the direction that Tim Cook is taking Apple may be superior to the one Jobs would have taken it in. Jobs probably would have made better gadgets, but Tim may end up making a better world.
I could definitely see Cook et al. winning the Nobel prize in medicine in 5-10 years if HealthKit catches on.
