Nokia, the company's chairman, Jorma Ollila, has announced that he will step down in 2012. Ollila's plan to leave the company in 2012 comes as Anssi Vanjoki, Nokia's executive vice president of mobile solutions, announced plans to leave the company in six months, and Nokia just named Microsoft executive Steven Elop as the successor to Olli-Pekka Kallasvuo, who is stepping down as president and CEO. Ollila's announcement caused a buzz amongst the 3,000 attendees at the Nokia World 2010 event in London, which kicked off Sept. 14. And though many see the series of departures as a bit of upheaval for Nokia in a time of increasing competition from Apple, Google and other smartphone makers, others view it as an opportunity. In particular, it is an opportunity for Elop to come in and make his mark more immediately. Ollila's departure will be sure to hasten that process. Nokia announced four new smartphones at its Nokia World 2010 show on Sept. 14, including the E7 business-oriented device.