The matter has been simmering for years as wireless gabbing takes place in more and more settings. Peter Post, great grandson of etiquette maven Emily Post and director of the Emily Post Institute, said the cell phone <A HREF="http://news.zdnet.com/2100-9588_22-5387652.html?tag=zdnn.alert">has warped people's sense of politeness.</A> When the little brick rings, he argues, people lose sight of how they might be bothering others.