So the HTC Rezound has already received the Android 4.0 Ice Cream Sandwich operating system update, but where does that leave the HTC One X from AT&T? Recently occupying some news space for experiencing a price drop, the HTC One X for AT&T has now received a new software update which will bump up the software number to 2.20.502.7, while the Android version number is a much more respectable 4.0.4 now. All we need to do now is wait for Android 4.1 Jelly Bean to be released sometime down the road, and your HTC One X would be up to par (operating system-wise) when compared to other newer models in the market. Have any of you performed this operating system update, and how has Android 4.0.4 been treating your HTC One X so far?