Not content with dominating the PC and smartphone market in the realm of operating systems, Microsoft has apparently now set its sights on PNDs. Today the folks in Redmond announced a new OS aimed directly at GPS units, dubbed Windows Embedded NavReady 2009. The software is based on Windows Embedded CE, and combines navigation tools enriched with Live Search, MSN Direct, and Windows SideShow integration, coupled with an emphasis on Bluetooth connectivity. The company says that the system is shipping to OEMs and developers as we speak, which will yield consumer devices in time for the 2008 holiday season.