A new feature in WebEx’s latest Web conferencing service has reporters and PowerPoint victims of all stripe a little nervous. The service being announced Monday, WebEx Sales Center, includes an Attention Indicator feature that can notify conference presenters when a meeting attendee has opened another application over the presentation. The idea, according to Praful Shah of WebEx, is to “keep the prospect engaged throughout the sales call.”During my briefing with WebEx this week I had the opportunity to see the Attention Indicator send up a flag next to my name. Of course, I had left the PowerPoint presentation unwillingly in order to take notes in Microsoft Word. Although I can see how it would be useful for sales teams to know if a sales pitch is falling flat, I find it a bit invasive that the WebEx service can detect my whereabouts during a presentation. To protect security, WebEx can’t tell which application you’ve opened over the presentation, only that you are not fully focused on the Web conference. Hopefully WebEx’s next service won’t include keyboard heat sensors able to detect my feelings through temperature readings on my fingertips. Technology Industry