Guys, unless 1) upon arrival at Tampa, the bound delegates will to their utter surprise by physically seized and literally forced to vote for Romney, or 2) the votes of the bound delegates will be entered in by the RNC as Romney votes regardless of what the bound delegates do, there is no such thing as "bound" delegates. All "bound" delegates mean is that on the first round, they cannot vote for a candidate other than the one to whom they are "bound". But as has been pointed out many times, they can abstain, and on the second round, they are no longer "bound." Hence the distinction between bound and unbound is virtually meaningless.
What are the prospects Romney doesn't get 50% of the delegates bound by the time Tampa happens?