Leave it to eSarcasm to get to the bottom of this.  Key points include:

You’ll no longer be limited to the Blue Screen of Death. When the Slate locks up and becomes totally unresponsive (HP’s Phil McKinney says this should never happen more than once a day if used for the recommended two hours), you’ll be able to choose from Lemony Yellow, Orange Orange, or Goofy Grape Screens of Death.