Phone has started 'unlocking' when put into pouch.

Just taking a wild guess...

The pouch is probably a bit snug I take it?

You are sliding the phone into the pouch top first?

As it slides in the pouch hits the unlock switch on the side.
Then as it gets the rest of the way in hits the camera button on the other side of the phone.

Try sliding it into your pouch bottom-first and see if it still happens.

It shouldn't have anything to do with it, the proximity sensor is to lock the touch-pad so it will not change things while the phone is against your head during a call.

But I guess anything is possible. I have a couple of N97's, one that is kept in a belt pouch and the other is kept in a pouch like the one I think you are speaking of, and neither phone have I experienced this on. I always thought and still think the lock button should be once to lock it and twice (say within 3-4 seconds)to unlock it , this way an accidental slide of the button by a foreign object would not activate the phone, since it is very unlikely joggling around in a purse would move the slider twice in the set amount of time.

I just tested some stuff out.

I'm using the new firmware, and the camera button does not override the unlock switch.

However if you slide the camera cover open it DOES override the unlock.

Is that what's happening perhaps?

Hi guys. I'm afraid it's not the camera slide at the back of the phone that's doing it. I've tried putting the phone into the case very very carefully, and there is definately nothing touching the camera slide or indeed any of the function buttons. When the lock is on pressing the camera function buttons doesn't unlock it.
Have attached photo of said case in-case anyone's interested

Genius! 
There is indeed a magnet in the case! Thank you, as it was driving me nuts wondering what was causing it.

Guess i'll have to search for a better case.

R.

This seemed to work fine for the first day, but now when I slide the phone into the pouch it will unlock it’s self and activate the front camera! I can’t seem to re-create the problem outside the pouch to figure out how it’s doing it.