The next GoPro is expected to launch in mid-October, and rumor has it, it's going to be one draw-dropping device. Compared to the GoPro HERO3, the upcoming 4 model is said to cost about $100 more, putting it at $500. That might seem a bit steep, but if the specs prove true, it's going to be worth it. At the forefront, HERO4 is said to...