NEW YORK (AP) — Research In Motion Ltd. unveiled new, versatile BlackBerrys after excruciating delays allowed Apple, Samsung and others to build commanding leads in an industry that is redefining society. But the first phone won't come out in the United States until March, and one with a physical keyboard will take at least a month longer.

The stock fell 12 percent after Wednesday's kickoff, despite mostly positive reviews about the new BlackBerry 10 operating system. There's concern the phone isn't coming out sooner, and there's worry BlackBerry 10's advances won't be enough to turn the company around.

In a move underscoring the stakes riding on its make-or-break product lineup, RIM used the occasion to announce that it is changing the company's name to BlackBerry. It's a pioneering brand that lost its cachet not long after Apple's 2007 release of the iPhone, which reset expectations for what a smartphone should do.