title: Android bootstrap
body: <p>Considering an ICS device's boot sequence,<br>
  what is the android side (java, not talking about the underlying linux system) bootstrap application stack?
  I know that the application that realizes the bottom ICS menu bar is SystemUI.apk, but what has been loaded before?<br>
  Who (if any) starts up without receiving any broadcast intent?<br>
  May be it is the ActivityManager that after loaded starts Launcher and SystemUI? </p>
  
  <p>Thanks in advance<br>
  L</p>