SilentKey S60 - Easy Profile Switching

Wouldn't it be nicer if you could switch your phone to Silent profile with just a press of a button, instead of going through the menu? With SilentKey by PhonePhreak Software, you can now silence your phone by just holding down the Red key (and then return to the normal profile the same way). SilentKey preserves the standard behaviour of the Red key during normal use (short keypress) unchanged. It merely adds a new functionality for holding down the key (long keypress).

http://my-symbian.com/s60v3/software...Auto=877&faq=1