Wirelessly posted (RIM BlackBerry 8300 Curve: BlackBerry8300/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/122)

So far I have found five different states that I can leave my BlackBerry 8300 Curve in:
* Keyboard lock
* Power off (via the menu)
* Power off (via the call end key)
* Stand-by (via the mute key)
* "Battery pull" (as referred to in countless forums)

Can someone please clarify the difference between all of these power states?

You left one off... in holster, which is similar to keyboard lock and stand-by from the mute key.

Power off from the menu and from the call end key are the same I believe.

Then there is the full power off from the power icon.

And the battery pulled would be the highest form of power loss.