The 512MB Micro is a n extra (which I think is a surprise). It might have to do with the fact it is a big switch to move over to Mcro cards. You need the headset adapter because there is no audio out port on the Mogul. Audio is sent out through the USB port on the bottom of the unit.
The rest of the stuff is pretty standard stuff. I think the big disappointment is the lack of a cradle. I'm hoping that Verizon will include one but I'm expecting not to get one when they finally release the 6800.