I am a newbie (second post), and have had my curve 8330 for a week now.
The one thing that I don't completely understand is the difference between putting my Blackberry on stand by and keyboard lock. I mean I know the literal differences (ie. press mute to put it on stand by, and hit the the app to put it in keyboard lock), what I don't understand it why one would do one vs. the other since they both sort of do the same thing.
...and there's less of a chance you'll pocket-dial 911 when you use standby. All it takes is when using keyboard lock is a few inadvertent presses of the trackball.
Take caution when you Lock your phone. When Locked, if you accidentally press a button, three options come up; Unlock, Emergency Call and Cancel. If you do this, is very easy to accidentally place an emergency call! I've done this a few times before I found out about Standby! Go with Standby, unless you want cops to show up at your workplace, home etc.
Posted from my CrackBerry at wapforums.crackberry.com
