Here's what I know, or think I know, about the delegate voting. This morning at the breakfast meetings, delegations gathered official votes from delegates; delegates could continue to submit (and change) their votes as the day went on.
Hillary Clinton has reportedly "released" her pledged delegates, told them that she has cast her vote for Obama, but that they are free to do as they please.
The delegations are trying now to finalize their numbers, to be ready for the impending roll call -- they are doing the nominating speeches now. I learned from an Illinois whip that 44 of that state's delegates are voting Clinton (out of 200 or so) -- and that's Obama's home base. So she'll have a solid showing IF they are tallied.
Rumor is that after the nominating speeches, they will let a few states vote -- probably skipping to home states like Illinois, New York, maybe others. Then Hillary will move to have Obama declared nominee by acclimation.