Microsoft released the Windows Mobile 6.5 software development kit (SDK) which is what developers will use to build applications for the upcoming mobile OS. Included in the kit is a set of APIs that let developers tap into the touch gesture framework. In a big change from previous versions of the OS, 6.5 is to be more touch-friendly, letting users scroll through the phone with their finger – no stylus required. Also included are gesture APIs and code samples for developing software for the OS. The Windows Mobile team even posted a guide for widget creation on their blog to help developers get going.