But to be safe, shouldn't we avoid using any devices that may be sucking Apocalypse-inducing coal power from the grid?

Vice President Al Gore to Keynote International CTIA Wireless 2009(R) Convention

International CTIA WIRELESS 2009 ... the premier event representing the global wireless industry, today announced that former Vice President and Noble Peace Prize Winner Al Gore will deliver a keynote address at 9:30 a.m. on Friday, April 3. International CTIA WIRELESS 2009 takes place April 1-3 at the Las Vegas Convention Center.