Baumgartner's "Capcom" (capsule commander) was none other than the man whose record he broke, retired Air Force Colonel Joe Kittinger, now in his eighties, who jumped from an altitude of 102,800 feet (about 19 and 1/2 miles) in 1960.
Baumgartner's feat gives me a chance to revive a label we used during my time at AndRightlySo, and which I certainly mean as a compliment: Badass.
Read more at BBC News, the Telegraph, the Washington Post, USA Today and PopSci.
Space.com has this infographic with some technical details. Blogger's video search feature has turned up this record of the jump. During the first few minutes, you can hear the audio from Baumgartner and Col. Kittinger.