Monolithix, on May 15 2009, 13:50, said:
The alarm chime, icon already appears to be there!
Try this (found on XDA)
disable play sound for new text message (settings>sound>advanced>notifications>Messaging:New text message)
Go back in and reenable play sound and change from default sound, then click OK again.
I've done this and tested it by putting my phone to sleep with the on/off button and it works. Even plays the sound when the messaging app is open and on the contact sending the message, although the LED doesn't blink because the phone marks the message as read immediately. Not sure how it reacts if you just leave the phone to sleep by itself.