Silent mode timeout

[Ben Burdette]

A simple feature that I'd like to see is a silent mode timeout.  What 
always happens with my current phone is I set it to silent mode because 
I'm in a movie or a meeting, and then later I forget to turn the ringer 
back on.  This leads to a lot of missed calls.  You could have a default 
timeout for simply holding down the 'volume down' button (if there is 
one on this phone), and this default would initially be 'no timeout'.  
When you enter silent mode, the GUI could display this current timeout 
and allow you to adjust it then.  A checkbox would allow you to make 
this the new default timeout.