For second time in less than a week, BlackBerry customers experienced an outage across all carriers.  Unlike the nationwide outage last Friday, today’s outage seemed to affect users mostly in the Manhattan, New York area.

Cell phone operator T-Mobile USA said an undisclosed number of its BlackBerry subscribers in Manhattan had only sporadic e-mail and other kinds of data service between 7:45 a.m. and 9:15 a.m.