iPhone "Slide for Emergency" and "Activated" error messages alvin July 7, 2009 - 6:13pm

I'm not sure what I keep doing, but every once in a while when I turn on my iPhone 3G (after turning it off completely, i.e., a restart/reboot) I see a couple of different weird "error" messages. The first error message says, "Slide for emergency", and looks like this: