Start-Up Builds Less Demanding Machines So far, three-year-old Ambient Devices has sold fewer than 60,000 of its products. Yet the company fascinates me because it is working on the frontier of making computers more intuitive.\&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;