[Bleuachdu]

There are pending patent infringment suits with RIM, the makers and service providers of blackberry. Obviously, if one of the challengers (there are a few) wins a court case, it could interrupt or stop the blackberry service. However, with the thousands (maybe millions?) of blackberry users, either RIM or the US govt will likely make sure that a settlement or arrangement is made that won't pose a threat to business continuity.