Apple never ONCE said that this software update was a "fix" for the antenna issue. It was people on here to who made the assumption based on the timing of the announcement that there was an "issue" with the formula the iPhone had been using to calculate signal strength.
Here's what Apple said:
we were surprised when we read reports of reception problems, and we immediately began investigating them. Here is what we have learned. ...
iPhone 4 can drop 4 or 5 bars when tightly held in a way which covers the black strip in the lower left corner of the metal band. ...
We have discovered the cause of this dramatic drop in bars, and it is both simple and surprising.
Upon investigation, we were stunned to find that the formula we use to calculate how many bars of signal strength to display is totally wrong.
They say that "the cause of this dramatic drop in bars..." is "...the formula..."
Am I misreading their letter?