Motorola: 28 percent of 2010 revenue came from Verizon

Think the Atrix 4G might be a critical launch for Motorola right now? A fresh regulatory filing by Motorola today revealed that the company got a whopping 28 percent of its cash from Verizon last year -- up from 17 percent in 2009 -- a pretty powerful testament to the "Droid effect." The company goes on to say that "the loss of, or a significant reduction in revenue from, one or more of these customers could have a negative impact on [its] business," and it's pretty clear that the launch of the iPhone on Verizon will have at least some impact this year. Question is, can they make up for the loss with a harder push on other carriers like AT&T?