Originally Posted by dabull
how is it any different from just holding down the star key?
If you want press buttons I guess its OK. If you use "keyboard lock" via the * key don't forget that you need to do a two finger * plus the send key to bring it out of standby. Also, the keyboard is locked but any key press will turn on the backlight, if your just pocketing the phone, the backlight could be on forever if a key is pressed. Keyboard lock is slightly different than standby or holstered mode.
On the latest o2 release the top mute key will put you in standby and take you out with one key press. This deactivates the backlight on a key press as well, until you come out of standby.