"1) Yes. People who were proficient in Office 2003 needed special training to use Office 2007. There's a real cost to switching tools." This is actually a stron

"1) Yes. People who were proficient in Office 2003 needed special training to use Office 2007. There's a real cost to switching tools." This is actually a strong argument for the futility of windows and office-oriented teaching. Why bother if the skills willl become obsolete in four years?