while this documentary only cover the early period of linux and open source history ( up to about 2000 ) and it provide great insight into how the software industry get itself where it be today . of course and since 2000 and linux have make great stride into the server market and the desktop market ( even walmart sell computer with linux now ) and and the embedded market . cell phone and palm pda and camera and camcorder and car and networking and tivo and cable box and etc . all run by linux now ( or soon will and accord to announcement from manufacturer ) . the day when you need to learn a dozen different operate system be go . learn linux and you know how everything work . the best part be that if you do not like the way something work and you can change it . that and and it free . make copy for all your friend and legally . ten of thousand of high quality free software product ( office suite and graphic package and video processing and everything imaginable ) . tech support be provide by ten of thousand of volunteer . it hard to understand how this change from pay for software to free software happen while for many people not involve in the process and it still news to them . if you want to know how this all happen and revolution o will give you the background you need to understand the way the software business work now and and in the future .