Cloning this repository:

git clone git://gitorious.org/~tostaffa/qt-mobility/tostaffas-contacts.git tostaffas-contacts
cd tostaffas-contacts

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

git remote add tostaffas-contacts git://gitorious.org/~tostaffa/qt-mobility/tostaffas-contacts.git
git fetch tostaffas-contacts
git checkout -b my-local-tracking-branch tostaffas-contacts/master_or_other_branch