Just as what they promised early last month, HTC has released an updated ROM with the new Windows Mobile 6.1 and couple of bug fixes. You will have to backup your data first as the software update will erase all the data stored in the phone.

Read the upgrade detail here on HTC website.
Bluetooth Headset: It may happen that you cannot hear anything when using Bluetooth headsets (Jabra JX10, Jabra BT500 or Samsung WEP 150) even when it has already sucessfully reconnected with the Touch Cruise.
Default Onscreen Keyboard: It may happen that the device will not remember the last onscreen keyboard used. Before, the onscreen keyboard always defaults to the Touch Keyboard.
Title Bar: It may happen that the Title Bar disappears when you go back to the Home screen.
Camera Viewfinder: It may happen that the viewfinder is cut when you open a Powerpoint file and then tap Options.
GPS Mode: It may happen that the display becomes “abnormal” after taking a picture in GPS mode and then going into Suspend/Resume mode.
FM Radio Speaker/Headset Mode: It may happen that the FM Radio program uses the incorrect output mode (Speaker or Headset) before the application launches.
TouchFLO Setting: It may happen that the TouchFLO setting does not appear in the Settings > System tab.
TomTom in Home Screen: It may happen that TomTom does not show in the Home screen.

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