Faster Data Synchronization
With increased data capacity and space for a variety of expansion cards (usually MicroSD but other types are supported across the vast range of devices), Windows Mobile handsets are commonly being used as much for storage as they are for mobile entertainment, portable office solutions and of course phonecalls.
The enhancements available to the USB to PC connection therefore are vital to this change in culture - but there is one other very useful change introduced in Windows Mobile 6.1.
With various types of data and connection speed ActiveSync is unable to sync data due to bandwidth issues on some versions of Windows, and under some operating system group policies.
If you're using Windows Mobile 6.1 or 6.5 and find that ActiveSync tends to just hang or fail entirely, this can easily be remedied.
On your handset, go to Start > Settings > Connections. Here, look for the USB to PC icon, and open. (Depending on your version of Windows Mobile 6 and various shells and UI enhancements, this might be tricky to find, but it will be there.)
In the USB to PC screen you'll find a radio button - ActiveSync (Sync with Outlook) - and a check box. By default the option Enable faster data synchronization comes already checked. However it can cause problems forcing ActiveSync to utilise a high speed connection. Clearing this check box and clicking OK to leave the screen will resolve these issues. A device reset will help too, enabling Windows Mobile to register this change fully and ActiveSync on your PC to disconnect and reconnect when necessary.