http://www.garmin.com/support/download_details.jsp?id=611
Changes made from version 2.60 to 2.70:
* Added translucent data background for data fields above the map. Please note: To adjust this setting, tap and hold on any of the data fields above the map.
* Added ability to dial the phone number of a business (POI) for Pocket PC devices that are phone enabled.
* Changed vertical speed data to display in feet per minute instead of miles per hour.
* Fixed lockup problem when displaying some Unicode characters for Chinese or Japanese regional settings.
* Fixed rare problems in guidance text display above the Map page.
* Fixed route simulation problem that prevented the route from being followed properly.
* Fixed cf Que communication problem when upgrading from version 2.40 that would occur if the \Garmin\Garmin.nvm file were lost.