InPhonic Shares Gain During Debut Shares of InPhonic Inc., a Washington reseller of wireless service and telephones over the Internet, rose 26 percent Tuesday on their first day of trading..&lt;br&gt;&lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-The Washington Post&lt;/B&gt;&lt;/FONT&gt;