We have noted some issues with the pairing of Windows Mobile devices to Windows computers.
The first issue seems to happen if the device has been previously paired with the computer outside of MoSync. If you are having problems sending application packages files from the MoSync SDK to a Windows Mobile bluetooth device, try unpairing the device in the Windows Bluetooth Device Manager or its equivalent, and then searching for it again in the MoSync SDK.
The second issue relates to Windows Active Sync and/or HTC Active Sync. These applications can cause problems when trying to connect Windows Mobile devices to the computer via MoSync and Bluetooth. Try disabling Active Sync if you are experiencing connection or file transfer issues.
Please report here and let us help you if you experience anything more than this.