Originally Posted by Pizzle
It's called a "sleeper" magnet. When it's in contact with your BB, it shuts the screen off, etc, so as to conserve battery.
And as to the credit card thing, it's been discussed and tested ad nauseum...there's nothing to worry about...the little magnet in any of these cases won't do anything to your CCs.
that may be true...but it does knacker your car parking tickets with a bar code as I have found on a couple of occasions.