question and/or feature request

[Charles Rezsonya]

is there an event that gets passed that tells that the unit is going to
sleep (after 1, 2, 3 mins or so).  if so,  what is it?

if there isn't one i know it would be very useful.  for example in my
scenerio where security is an issue,  if the unit turns off,  then it would
be good to be able to toss back the user to the introductuary login screen
so someone else doesn't use their account.