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Addicts fear BlackBerry jam over hand-held lawsuit

They are the addicts who slake their craving in public, snatch a fix in boring business meetings, on the subway, or even risk a hit during rows with their spouses. But Americans hooked on the BlackBerry hand-held computer, dubbed by wags as the "Crackberry" for the hold it has on users, may soon be tasting cold turkey, if a patent dispute forces its maker to turn off the service.