Cloning this repository:

git clone git://gitorious.org/~m3topaz/qt-labs/m3topazs-mobile-demos.git m3topazs-mobile-demos
cd m3topazs-mobile-demos

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

git remote add m3topazs-mobile-demos git://gitorious.org/~m3topaz/qt-labs/m3topazs-mobile-demos.git
git fetch m3topazs-mobile-demos
git checkout -b my-local-tracking-branch m3topazs-mobile-demos/master_or_other_branch