Tired of heavy flashes making your camera top heavy? here’s an idea for the next step in flash design. How about having a grip shaped flash that mounts all the electronics and batteries under the camera like a battery grip - and a flexible flash head that can be adjusted just about anywhere! on either side. That will make it easier to carry the camera around your neck. When carrying two bodies it would make sense to use a system that hangs the camera from it’s original strap clips.
Someone mentioned that it would be good for macro shooters if there were two flash heads. Perhaps it could come with the option to interchange which side you have the flash head coming out - and the ability to buy an additional flash head and plug it in to the other side - it will be similar to having a larger light source and softer lighting for portraits as well.