GoPro footage somehow seems old hat already, with newjack stuff out there like Google Glass (usually disappointing) and Oculus Rift (HELL YES). But this? This is awesome.
This is Felix Baumgartner's jump from 24 miles above the Earth, from a first-person view we haven't seen this clearly before. You can see what Baumgartner saw as he started falling from far enough up to see the curvature of the Earth, and what the minute-long violent spin that almost knocked him out looked like from his perspective.
The footage itself was used, in part, last October as part of a multi-angle video by Red Bull, but it wasn't nearly as clear (or gorgeous) as this one.