Do you think they fixed the sound issues??

[Heat00]

Maybe it's just me, but my 600 has some major issues with sound, ie: speakerphone is useless, cannot hear the speaker unless its dead quiet where I'm at, and the ringers... you can hardly hear any of the ringers. The best one is the loudphone and even that one I have to turn on the vibrate also or I wont hear it in the car.
Anyone know if they have addressed these issues on the new 650?
And what about this removable battery? Is it the same MaH as on the 600? Will there be an extended one available?

Thanks for your input.