The noticeably missing Bluetooth voice call capability is NOT missing and is present in Android 2.1. When the Canadian and Euro Milestones received their 2.1 updates on the update feature pages one of the mentioned additions was in fact "Bluetooth voice dialing". Now as to why Motorola/VZW whomever decided NOT to include this in the U.S. 2.1 update to the Droid is beyond me but it does in fact already exist.
Link me and show me a reliable source that says this. Because I sure haven't heard of any Android phone having bluetooth.
Give me a link and I'll come back and say you're right, until then I stand by what I say. And remember, it has to come from a reliable source like engadget or something similar.