Originally Posted by mswlogo
I've seen that one before. That super magnet can mess up the compass in some phones.
I had a similar concern before using it. There is a video and FAQ on the Tetrax website that addresses this issue. Also, I read an independent review that tested this with no adverse effects. Finally, there are a few other forums that have discussed this at length with no real world problems with this particular system.
The button that you attach to your phone is not magnetized, it is only metal. My own use of this holder for the last year has had no ill effects on my own phone. Of course, your mileage may vary.