Originally Posted by Evo_Shift
Yeah hopefully as the custom ROM scene matures the devs roll get rid of that and maybe the dock icon. There seems to be a lot of notification spam in ics/honeycomb...unless it's an Asus thing
Notifications come from apps only (some may be system ones, of course), since apps can call notifications. I suppose this external storage notification is called by ASUS tweaked app, since MicroSD was never notified on my old HTC Desire.