[Q] Ideas for the magnetic back? topic

Seems to hold up pretty good on any flat metal surface, as long as the metal is thick enough to counter the weight of the Tegra. I want to mount the Tegra horizontally so I can use it laying down hands-free without having to crank my neck. I'm just afraid that if the magnet gives out it might hit me in my eye socket (I'm not worried about it busting up my face otherwise, although a chipped tooth would really suck).