Saw a guy this morning rocking 5 (!!) go-pro cameras on his bike.
1 on his helmet, facing forward
1 behind the saddle, facing aft
1 under the left side of his drops, facing aft
1 under the right side of his drops, facing 90 degrees right
and - my absolute favourite - 1 on a pole extending approx 1.5m in front of his bike pointing directly at his face.
London's famous(ish) Traffic Droid?
http://www.london24.com/polopoly_fs/lewis_dediare_19_09_11_1_1_1070070!image/3285340611.jpg_gen/derivatives/landscape_630/3285340611.jpg