HTC has released a Windows Mobile 6.1 upgrade for the HTC S720, the CDMA variant of the S710 (HTC Vox), for Telus Mobility.
The new firmware (version 3.03.661.2) not only upgrades the device to Windows Mobile 6.1 but also adds EVDO Rev. A capability, improves overall device functionality and stability and adds new shortcuts for easy access to TELUS mobile email, TELUS navigator, and Pocket Express applications.
Note: The update will replace the current ROM image and will erase partnership and all user data and programs on your device. Be sure to back everything up before you start.