If what is above this post is correct, then we are in for quite an enhancement. BTW, the iPhone allegedly uses the CSR BlueCore4 chip. And it DOES support A2DP and even AVRCP. I don't know where you got your info from...
I would love to see this in the update. An internet radio app would be awesome too. I like iRadio, but it really isn't kept updated at all... (At least recently) This is all part of Apples marketing scheme; It is so like them. They come out with the device, and all the early adopters buy in. They then let it sit out there, release a larger capacity version, and now this update. It keeps reeling in new adopters. I bet that most if not all of these 'new' features have been ready since day one, they were/are just milking the success of releasing these features, one- and two- at a time
As long as I can downgrade back to f/w revisions that have been jailbroken, then I have no issue