The Great BlackBerry Blackout of '11 is clearing up, and not a moment too soon for users who rely on Research In Motion's technologies for critical business communications. The problems started early in the week for customers in Europe, the Middle East and Africa, then spread to India and South America before making its way into North America, including RIM's home turf in Canada. The official cause of the conniption was the failure of a dual-redundant high-capacity core switch, according to RIM.
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