Nintendo Says 'Touching Is Good' in Sexed-Up DS Ads  NEW YORK (Reuters) - Japanese game maker Nintendo Co. Ltd.  &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=7974.OS qtype=sym infotype=info qcat=news"&gt;7974.OS&lt;/A&gt; is sexing up its U.S. advertising to launch the DS  handheld device, promising mature players that the gadget is  not their little brother's Game Boy.