SAN FRANCISCO - APRIL 18:  BlackBerry user Douglas Philips checks emails on his BlackBerry April 18, 2007 in San Francisco, California. Millions of BlackBerry users across the United States experienced a disruption in email service as Canada based Research in Motion dealt with technical difficulties with its email servers. Getty Images logo Getty Images 58 months ago

SAN FRANCISCO - APRIL 18: BlackBerry user Douglas Philips checks emails on his BlackBerry April 18, 2007 in San Francisco, California. Millions of BlackBerry users across the United States experienced a disruption in email service as Canada based Research in Motion dealt with technical difficulties with its email servers.