If asked about Windows 8’s primary theme, most developers would say that the ability to use the OS across multiple devices and platforms, such as smartphones and tablets all the way to desktop PCs, is of primary importance. The new Metro mode that will be available in Windows 8 will work on all of the various platforms, while the desktop mode will only work across platforms which support it.
The improvements to Visual Basic that will come with the new OS will depend on the strong emphasis on a responsuve user experience through the use of asynchronous methods. The introduction of the Async and Await keywords in Visual Basic along with Visual Basic’s iterator construct will bring some parity to those iterators that were introduced in Visual Studio 2005.