At the 2010 Mobile World Congress, held in Barcelona, Microsoft announced its newest operating system (OS): Windows Phone 7. The new OS should be available in its first handsets just in time for holiday shopping later this year, and Microsoft promises it won’t wait until the last moment to release it, instead giving customers plenty of time for advance orders.

Support for Test First Development

The integrated development environment (IDE) for Visual C# and Visual Basic is now able to create code stubs for new members and types even before they have been defined. This allows programmers to begin their process by writing tests and only afterwards create the code needed to compile those tests. The work is aided by the suggestion mode of IntelliSense, which prevents automatic completion of hitherto undefined members or types.