a user, mciarlo, in the "When was your iPhone 4 manufactured" thread stated that he called AppleCare and was told that the software fix will change the way the signal is routed through the different GSM bands. now im not too familiar with all of this wireless terminology, but this sure sounds like it's more than just change in the way the bars appear. can someone with more knowledge about this please let us know what this can mean and what we can expect?