One reason for the worry, analysts say, is that no amount of advertising will help increase the sales of BlackBerrys in the United States because the current line is a jumble of models. There are BlackBerrys that flip, BlackBerrys that slide, BlackBerrys with touch screens, BlackBerrys with touch screens and keyboards, BlackBerrys with full keyboards, BlackBerrys with compact keyboards, high-end BlackBerrys and low-priced models.
The company, in a statement, said it did not know how many models were on the market.
--Ian Austen, NYT, on not knowing the first thing about your own business
