If you still had any doubts at this point that the HTC Rezound Ice Cream Sandwich update was indeed rolling out as reported by the first batch of users, let me dispel them right now. Verizon Wireless just updated the official document detailing the Android 4.0.3 rollout (it's indeed HTC build version 3.14.605.12 and Sense 3.6). Here are some screenshots of the doc along with the changelog:

With this upgrade, your device will now run on Android 4.0.3 (Ice Cream Sandwich). Additionally, here are some feature enhancements included with this software release. Applications & Widgets

+ V CAST Media Manager has been updated to Backup Assistant Plus with an enhanced user experience.

+ Time zone issues have been resolved and proper Timezone will display within the Clock Widget. Device Features

+ Device is enabled with the Wireless Alerting System.

+ Cisco AnyConnect support has been added to improve VPN functionality.

+ Improved data connectivity for a better user experience.

+ Improve device stability minimizes the number of resets.

+ Improvements to Mobile Hotspot connectivity. Email, Messaging & Web

+ Improvements to default mail application now displays all Yahoo! mail contents properly

Welcome to the club once again, Rezound owners, officially this time. And if you don't feel like waiting for the OTA, feel free to download the full RUU from here.

Source: Verizon

Thanks, bigmac and igloobunny!