The only really noticeably useful thing that BB2 did was to add an autoupdate hack for iconless files. Before BB2, if you opened a WB window and selected "Show All ...Files" from the WB menu, it wouldn't keep track of any changes you made to the files or any new files you added since opening the window. BB2 was supposed to be able to autorefresh WB windows so that the window always displayed the correct directory contents. It worked intermittently.
