Microsoft CEO Steve Ballmer (R) chats with Polish deputy Prime Minister and Economy Minister Waldemar Pawlak prior a conference on April 23, 2009 in Warsaw. Ballmer announced Warsaw will host the Imagine Cup in 2010, the Microsoft's annual innovation challenge for students from all over the world. Getty Images logo Getty Images 6 months ago

Microsoft CEO Steve Ballmer (R) chats with Polish deputy Prime Minister and Economy Minister Waldemar Pawlak prior a conference on April 23, 2009 in Warsaw. Ballmer announced Warsaw will host the Imagine Cup in 2010, the Microsoft's annual innovation challenge for students from all over the world.