Cloning this repository:

git clone git://gitorious.org/~williem/beagleboard-validation/williems-linux.git williems-linux
cd williems-linux

Add this repository as a remote to an existing local repository:

git remote add williems-linux git://gitorious.org/~williem/beagleboard-validation/williems-linux.git
git fetch williems-linux
git checkout -b my-local-tracking-branch williems-linux/master_or_other_branch