I know several of us have experienced the pains of trying to move several fields up and down in the data source and getting to that "Move Up" and "Move Down" dialog in the right-click menu is especially painful. Now, introducing keyboard shortcuts!
http://blogs.msdn.com/infopath/archive/2006/05/04/590005.aspx
Matt Faus / Microsoft InfoPath MVPQdabra® Software / Streamline data gathering to turn process into knowledge