make a nandroid first, you could? but will lose other things that are tied to the systemUI.apk
Okay, I will just keep my phone on Beta 3 until you have time to do the new one. My wife is on 4, and she probably doesn't care too much at this point...
As an FYI for people having the weather problem, I have not put any of these updates on yet, and my phone has the problem as well. So it is some sort of issue with HTC or Sprint (whomever hosts that data). It has nothing to do with these updates