I received the initial and one update for ICS. I am running "S: D710.10 S.FH13". Two things I have noticed since the last OTA, a few Apps are broke when the phone is rebooted. Apps like National Geographic English, Meteor Shower Calender, AccuWeather, Powow, doubleTwist, report they are not responding to name a few. I have cleaned the phone cache for these apps, but still issues at restart.
The other has to do with Bluetooth connections in my 2012 Honda CR-V EX-L. The phone keeps disconnecting and reconnecting to my vehicle's Bluetooth service. My wife's phone (older Sprint model HTC) is fine with the vehicle.
Don't have 4G where we live, so don't know if there are any issues there. WiFi appears to be fine. Battery life? Still about the same.