I read a post here that nokia tried the same thing and eventually did find a fix HOWEVER apple does not want to pay for the right to use the fix.
Instead they want you to buy a “bulk up” phone case.
I use one of those moronic bluetooth ear pieces, but it makes it so that I don’t use my hands when I’m on my iPhone4 (because of driving). I haven’t had any issues.
I like the thing. Someone showed me their Android the other day. No thanks.