I’m really going out on a limb with this prediction – but to achieve some things with human bodies we will need to adjust.
Right now Google Maps has cars that drive down every road and capture street images. They achieve this by using a special camera mounted on a small tripod above the vehicle.
They also have a “self-driving” car which has a 64-beam laser on the roof:
The car has been driven for thousands of miles without an accident, but the key to this is 360-degree views.
When humans want to combine computers with their real-world activities, they might find that products like Google Glass are too restricted – that you need to look at something for the system to know it is there.
I suggest that the need will arise for a 360-degree sensor system, using cameras and/or lasers, microphones and so on. The only easy place for it is on top of your head (or perhaps a necklace of sorts.
Eventually ways will be found to make it look cool, perhaps like elongated skulls wearing beanies. There won’t be much use for it when you are at home, so it will be removable.