"Not dead yet" could well be the new BlackBerry marketing theme, as the world prepares to hear about two new BlackBerry 10 smartphones to be announced next Wednesday. Days before the announcement, there is fairly wide disagreement among analysts and developers over whether Research In Motion can stop the dramatic decline of its BlackBerry phones. The BlackBerry was the market leader until the iPhone was introduced in 2007 and Android phones after that. Its market share fell to 10 percent in 2010 and has dwindled to 5 percent today.