It looks like another AT&T Android device is about to get the Android 4.0 Ice Cream Sandwich update, the LG Nitro HD, and the update will be available from tomorrow the 31st of July.
It looks like the update will not be available as an OTA update, instead you will have to download the update to your computer, and as well as Android 4.0 ICS it will also bring LG’s Optimus 3.0 UI to the device.
As a reminder the LG Nitro HD comes with a 4.5 inch HD touchscreen display with a resolution of 1280 x 720 pixels and the device is powered by a dual core 1.5ghz processor. The update will be available through LG’s update tool some time tomorrow.
Source Android Community