I know I don't post here very often, but I'm one HECK of a lurker!
Just wanted to share this because I thought it was pretty neat. Gizmodo used a 1DX's super-fast burst rate to shoot the equivalent of 5K video by stitching the still shots together. The picture is somewhat choppy as you can imagine, and each shot is short due to the buffer filling up. It also must have take a LONG TIME to process. But the final result is actually quite impressive, and I thought it looked great too.
http://gizmodo.com/5936270/the-canon-1dx-makes-one-hell-of-a-5k-movie-camera
Of course none of us have TVs that can take advantage of it....but it's still neat anyway!
alex