Nice tip, now I can change the convenience key to something else!
Yes.
Under the 'Options' menu, select 'screen/keyboard' - then change the value for 'Convenience Key Opens' - and change it to whatever app you want to run when the button gets hit.
I've heard some great shortcuts for Key Lock, but a friend of mine just got me onto something different. Let's say you wanna put your phone in your pocket, but you don't want to make a call or something.
Instead of engaging the Key Lock, which requires two hands and some attention, why not reach for the mute button, hold it down for a couple seconds, and there you go. The phone is now in standby ad can be exited by pressing the mute button again.
Besides being a one-handed move, which is key when on the go, you save battery power because your screen goes dark until it is out of standby. Not bad, eh?
You can still receive calls, get IMs, and calendar notices too!
Is there a negative to this method? Is there any reason why I should go back to using Key Lock?