Samsung Galaxy S is still on the list of best Android phones and it keeps getting better with all the love and care developers, hackers and modders are showing it. Recently, an XDA member Armin Coralici was successful in installing Ubuntu on the Galaxy S.
There is a considerable speed lag with Ubuntu but it works perfectly well. The installation was made by creating a chroot environment for ARM. This is probably because chroot is available only for the x86 and x64 architectures. The version of Ubuntu used here is a stripped down version and here is a video of Ubutu running on Galaxy S.
Cannot see the video? Follow this link to YouTube.