Microsoft has renewed its interest in mobile computing. The software giant, which earlier in 2006 introduced its Ultra-Mobile PC, formerly code-named Origami, has created a new mobile marketing group with rising executive Mika Krammer as its director, and is working to synchronize not only what it says about its two mobile operating systems–Windows and Windows Mobile–but also the way they work together. Mobility, whether in the form of notebook PCs or smart phones, represents a rapidly expanding market, so Microsoft is paying more attention to it and working to better integrate its various marketing efforts focused on the space.