Some requests:
Can you make the Display and Sound applets launch their equivalent Control Panel applets somehow? The command "dbus-send --print-reply --dest=com.nokia.controlpanel /com/nokia/controlpanel/rpc com.nokia.controlpanel.run_applet string:libcpdisplay.so boolean:true" will bring up the Control Panel with the Display applet open; "dbus-send --print-reply --dest=com.nokia.controlpanel /com/nokia/controlpanel/rpc com.nokia.controlpanel.run_applet string:libcpsound.so boolean:true" will do the same but with the Sound applet.

Can a tap-and-hold function be added to the label that says headphones/speakers to make it switch between the two? The commands found in this post will do the trick. However, and I must admit, multimediad offers no real way to get the state. The state is stored in /apps/maemo/fmradio/speaker by the FM radio applet, but I don't think anything else uses it...