On my Mogul, Settings->System Tab->Key Lock has the following 3 options:
When device is off:
- Lock all buttons except Power button (what I have it set to)
- Lock buttons if device is locked
- Do not lock buttons
I assumed this was a standard control panel, and not something installed after I got it (because I didn't consciously install just this piece). It's possible that it's part of the Messaging Security and Feature Pack [MSFP] for WM5/6, which I had to "accept" when I did my first sync to our Exchange server (although it's not mentioned anywhere in the docs for MSFP).
Anyway, when I hit the power button, it goes off and the only button that still works is power.
It does look like a standard thing, or at least it's explained as such in this review:
http://justanothermobilemonday.com/W...-mogul-by-htc/
I'm not sure how this hasn't been mentioned yet.