- Single Menu FORCES "click to focus". Which is, for anyone who ever worked with sloppy focus, a massive productivity killer. (A similar problem, by the way, are programs who automatically give their pop-ups the focus and place them anywhere on the screen, no matter whether the application generating the pop-up even has a focus; and programs opening their pop-ups as normal windows, so they disappear behind any application immediately if they loose focus).
- The only point where something like "click to focus" makes sense is when you've got a inherently inaccurate pointing device (smearpad, or whatever these things are called ;)) and a small screen estate.