A view of the to-do list feature on the new Windows 7 phone on display at the Microsoft Tech-Ed North America Conference at the Ernest N. Morial Convention Center in New Orleans, Louisiana, U.S., on Thursday, June 10, 2010. Microsoft Corp., the world's biggest software maker, raised $1.15 billion of interest-free financing from its first sale of convertible bonds. Photographer: Derick E. Hingle/Bloomberg via Getty Images