As expected, Microsoft More importantly, Windows Mobile 6.5 will also mark the launch of an online store for mobile applications known as Windows Marketplace for Mobile and the My Phone synchronization service. The new version is an interim release until the oft-delayed Windows Mobile 7 operating system for handhelds arrives sometime later this year or in early 2010. However, even handsets with Windows Mobile 6.5 are not expected until the second half of 2009.