The Impact Of SOA and Web Services On Wide-Area Networks
All major operating system vendors are on board and have, or soon will have, major releases that implement Web service entry points and tools. A major milestone for SOA adoption will be when Microsoft finally releases Vista (formerly known as Longhorn). Vista has been called the Web services release for Windows. It's now in its beta 1 stage (what Microsoft has previously called release candidate 2). Before long we should see the market-dominating operating system join Linux, Solaris, and HP-UX in enabling SOA-based applications.
Source: SYS-CON AUSTRALIA.