Shares of Research in Motion Ltd. plunged 17 percent before Friday's opening bell, after the BlackBerry maker said it will delay the launch of critical new phones and revealed that its business is crumbling faster than thought.

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(Reuters) - Research In Motion Ltd could run out of cash and ultimately fail, even with the launch of its now-delayed BlackBerry 10 device early next year, Wall Street analysts said. At least 10 brokerages cut their price targets on the stock, some by as much as 50 percent, a day after the company reported worse-than expected quarterly results and said it would delay the launch of its next-generation device to early 2013 from late this year. RIM shares were down 16 percent in pre-market trading on the Nasdaq. ...

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