According to October 2010 data released today by The Nielsen Company, Apple’s iPhone and Research In Motion’s BlackBerry are in a statistical dead heat for the lead in the U.S. smartphone market. The iPhone has a slight edge, with 27.9 percent of the market compared to BlackBerry’s 27.4 percent; Google’s Android OS sits in third with 22.7 percent. Both iPhone and Android hold a significant lead when it comes to the most desired…