As a celebration of the 25th anniversary of the Amiga computer, Hyperion Entertainment has made a video using the Gource CVS visualization software showing a time-compressed version of 25 years of Amiga development, from the early days of AmigaOS 1.0 to the present. Personal commentary added by one of the current core full-time AmigaOS developers, Hans-Joerg Frieden (a.k.a. "Rogue").
Video in a couple of popular formats and resolutions availabe here.
"A complex system that works is invariably found to have evolved from a simple system that worked." -- John Gall, _Systemantics_