According to sources at Taiwanese handset makers, Microsoft is set to deliver Windows Mobile 6.5 to handset makers in the second half of 2009. Handsets running the newest OS are expected to debut some time in Q3 2009, though most manufacturers will likely be targeting the holiday season for launch. The leak focuses on new handsets and provides no indication whether Window Mobile 6.5 will be provided for the current crop of 6.1 handsets. Microsoft is still expected to unveil the details about its mobile OS at the Mobile World Conference next month. We will have to wait and see if this latest iteration of Windows Mobile will wow us or just give us another reason to look forward to webOS.