James,
In regards to issue number 2, the tooltip isn't helpful. In version 6, I could see if everyone had accepted each comment without having to hover over each comment/bug icon.
Another reason why this isn't helpful is because this only works when the reviewer has commented on a file. If we review a file and have nothing to comment on it, we typically mark the "Overall" Accept button for the file to show that we have approved its changes (and it can be used as a marker to remind ourselves that we've already reviewed the file). In version 7, I cannot see that someone has already accepted those files.
-Matt