It looks like the issue of laptop and blackberry distraction in meetings has been coined with the term "topless", interesting - if nothing else it's a great way to get peoples attention so I can ask them to switch off - "Ok, so before we start can I get everyone to go topless ?!"
See the recent article over at the Mercury News:
As the birthplace of technology, Silicon Valley may have more gadgets per capita than any other place on the planet. Yet, even here, "always on" can be a real turn off.
Frustrated by distracted workers so plugged in that they tune out in the middle of business meetings, a growing number of companies are going "topless," as in no laptops allowed. Also banned from some conference rooms: BlackBerrys, iPhones and other personal devices on which so many have come to depend.
http://www.mercurynews.com/ci_8688897