Can Motorola rebound?

With Greg Brown officially installed as CEO in place of Ed Zander, Motorola must now decide whether to pull the trigger on a corporate breakup. According to activist investor Carl Icahn, slicing up the Motorola pie could generate almost $20 billion of additional shareholder value. But first the company must re-energize its struggling handset business--no small feat, given that the last time Motorola enjoyed any real device cachet was in 2004, when the RAZR first hit the market. Moto could also sell off its public-safety radio and device business or its home-and-networks division, but one question: Who will buy them?